Everything You Need To Know About Open Water Swimming

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Nov 7, 2026
Everything You Need To Know About Open Water Swimming
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Are you struggling with the unpredictability of open water swimming?
I used to hate every second of it until I learned these tips
which completely changed
the way that I thought and went about open water swimming.
In this video, you'll learn how to transform
your swimming from feeling anxious and uncomfortable
in the open water to feeling confident and at ease.
I'm Brenton and I used to dread every second
of open water swimming until I learned these
couple of tips and I went on to break
the age group course record at the New Zealand
Ironman in a 47 minute swim.
I help adult swimmers and triathletes improve their swimming,
become more efficient through our online courses,
our camps and our clinics.
The first thing you need to know about
open water swimming is the mindset.
One thing that I got taught by Chris McCormack,
the legendary Ironman athlete, was that you
shouldn't be a victim.
Don't be a victim when you go to the open water. The swimmers that are
timid in their approach are often the ones that get swum over
and are really uncomfortable.
Now, I know it takes a little bit of confidence
and proof that you can be comfortable in the
open water, but having that mindset of,
I'm not going to be a victim, can really help
you have a lot more success.
So you don't need to be overly assertive
or aggressive to the other swimmers, but you've
got to make sure that you don't take a complete backseat
because they are the swimmers that
tend to get thrown around, pushed under the water more,
and don't do quite as well in
the open water.
So that mindset piece is a really important one.
I've coached athletes
who have swum 10 to 20 percent further than what they needed to
in an open water race.
And not only does that slow them down,
but it means that they're taking longer to do the race,
they're having to use a lot more effort,
and then sometimes they're going to miss the pack
on the bike if they're doing triathlon.
So making sure that we sight well and we don't lose our
speed when we do it is one of the most important things
that you've got to develop as an open water
swimmer. Now, the mistakes that I see people making
when it comes to sighting, the number
one thing is that they tend to lift their head up,
take some strokes, and then they put their
And when they lift their head up and do that,
their hips and their legs drop significantly.
And it not only slows them down, but they lose their stroke rhythm.
The way that I like to teach people to sight
is to use the rolling breath or the sight and
breathe method. And that method is you should lift up
and sight on one stroke, and then you're
going to turn to the side to breathe on the next stroke.
So it's like a rolling breath.
Now you can see here in this video
when Andy Donaldson is doing this he doesn't break his
rhythm. You can hardly notice that he's getting this look forwards.
It's just a part of his stroke
and my benchmark, my way of sort of establishing whether
or not someone's doing this well
is if you do a fast hundred and you get your time
then you do another fast hundred
and you get your time but you sight every 12 strokes
If you are within one to two seconds of that time from the first one,
then you're probably
sighting and breathing quite well.
So you shouldn't be much slower than
that when you introduce your sighting.
Now another way to sight is to raise your head
a little bit think about getting crocodile eyes
and take a few strokes where you've got to lift
your elbows up you've got to increase your stroke
rate increase your kick to get a good look at where you're going.
That's another way to do it
if you didn't get a very good look the first time.
So you can use these two types of sighting
wherever you need to in your race depending on what conditions are like
but we just want to make sure that we don't lose our rhythm
and we don't slow ourselves down.
When we introduce sighting into our stroke.
A few ways you can sight better as well.
One thing that's good to do in a race is to make
sure you do a course recce.
You want to make sure that you know where you're going, what does the
course look like and are there any landmarks
that you can line up with when it comes to doing the
buoy turns. So if you get a chance
to do a lap of the course before the race,
then you can see if the buoys line up
with anything on the shore and that way you don't
you don't have a very small buoy to look
for because sometimes if it's wavy and choppy
And you've got the boys there, very hard to see,
but if you can line up maybe a tree or a building
or a landmark on the land,
then you have a much better idea of where you're going.
So that's the first thing that you'll need to do.
The other part of making sure you sight well
is making sure you've got a good pair of goggles.
Open water goggles are usually a little bit bigger with the lenses,
and I find that to be quite helpful,
just to give you a bigger field of view, and making sure
that you either buy a new pair of goggles for the important races
that you're doing, but test them before you use them,
but a new pair of goggles so they're clear,
or just get a really good anti-fog goggle, so that you don't have
these foggy goggles where you can't see anything.
So something like the Maratona HydroClear goggles are really good.
But goggles that either don't fog up,
or sometimes I would buy new pairs of goggles for races.
So I didn't run into that problem.
Some of the stroke changes that you might need to make
when you're going from the pool
to the open water.
A motto that I've got is higher, wider, faster.
When you think about your arm coming over the top of the water,
sometimes your hand needs to be a little bit higher than in the pool.
Sometimes it needs to be a little bit wider
because you might have a wetsuit on,
or you might not be able to get as close
to the body as you would in the pool.
And sometimes you've got to be a little bit faster
and a little bit more assertive over the top,
so you carry your speed over and just get that hand in.
So higher, wider, faster is a general way
of improving your stroke for the open water
if you're used to swimming in the pool. The other
thing you might note when you go from the pool to the open water,
especially if you've got a wetsuit
on, is you might find your kick a lot less.
With the buoyancy of a wetsuit, with the buoyancy of
I'm going to add a little bit of salt water.
Often your legs don't need to do too much,
especially if you're going at a slower pace
or you're doing a longer distance event.
Generally, your kick's going to be there
to support you, not to propel you.
But in the open water and with the wetsuit on,
sometimes you don't have to do a whole
lot with the legs, which is absolutely fine.
As long as they're still working in coordination
and rhythm with the rest of your stroke, that's
what you'll often find will happen with the legs.
For swimmers that like to breathe every two strokes
when they're swimming, I find that they
tend to go for a little bit more of a loping sort of freestyle,
where you'll be a little bit longer
on one side and a little bit shorter on the other.
It's that loping or galloping sort of stroke
that tends to work a bit better in the open water,
especially if you are going fast. So if you find
that you naturally gravitate to that sort of stroke
when you're swimming at speed in the open water,
Then lean into it.
Now, sometimes that can work really well.
So it's worth just practicing that
and seeing what feels best for you
and what feels efficient for you
when it comes to racing in the open water.
You're likely to have less glide as well.
When there's chop and there's waves,
you probably don't have the same sort of time
as you have in the pool.
As you're extending and reaching forwards in the pool,
you don't have anything moving you around.
So normally we'll find that
in the open water that you're going to get
into your catch a little bit sooner and you're not
going to have the time to extend out quite
as much especially for those shorter faster events like a
500 meter swim or a 1k swim
or even maybe a 2k swim you won't have the time to glide quite as
Now, if you are swimming more marathon distance
or longer distance swims, then maybe you will,
but it really just depends on the event that you're doing.
But a lot of times people will get caught out
by trying to over glide in the open water
when it gets choppy.
Now, not to say you can't extend out.
You look at someone like Andy Donaldson's swim
and he maintains his length really well.
But for many people, they just need to start
the catch a little bit sooner than what they
used to.
Compared to in the pool.
The other thing I see people doing
when they go from the pool to the open water
is they're trying to be too pretty with their stroke.
You need to allow yourself to get a little bit scrappy.
Get that hand over, get it in the water.
Don't try and be too perfect and controlled with it
when the conditions are not great.
So allowing yourself to rate up, to get your stroke rate up a bit,
to be a little bit scrappy with it,
that's been a way to overcome those difficult conditions,
is to just move away a little bit
from that classic perfect pull technique and just allow
yourself to not be perfect. Allow yourself to get scrappy.
And the last thing there is the stroke rate.
Typically, people will increase
their stroke rate compared to in the pool because in the
open water, the water is typically more aerated from people's bubbles,
from the chop and the
waves, so it's not as thick,
which means that you're probably going to be increasing your
stroke rate to account for that.
And you're probably going to be increasing
your stroke rate as well because with a wetsuit on
and in salt water, you sit a lot higher in the water.
And that also just means that you can
comfortably get your stroke rate up
a little bit higher as well. So for me,
my stroke rate will typically be about 10% higher
when I'm going at the same speed in the open water
compared to the pool. I'll normally be a 65, 66 stroke rate.
in the pool but then I'll be around a 75 stroke rate
when I'm racing in the open water for the
same speed and I find a lot of athletes are similar with that.
A question I get a lot is
why am I slower in the open water compared to the pool?
Now there's a number of reasons for that.
The first one being you don't have the walls to push off of.
You get a lot of speed and acceleration
off the walls. Even if you're not very good
at your turns you're still getting some extra push
So that's one reason why you might be a bit faster
in the pool compared to the open water.
Especially if you're in a 25-meter pool or a 25-yard pool,
that's lots of push-offs.
That's lots of speed that you're gaining each time you make a turn.
That's the first thing.
The other thing is in the open water, you haven't got any rests.
You're always going to be swimming.
It's continuous.
And so sometimes without that rest or without those intervals,
your speed is just naturally
going to be a little bit lower.
But then you've also got chop and you've got waves
and you've got other things to deal with.
So they are other reasons why you might be slightly slower.
Now, it doesn't mean that you can't be just as fast
in the open water as you are in the pool,
taking into account with the turns,
especially if you're wearing a wetsuit
and you're swimming in salt water.
That extra buoyancy from those two things
can allow you to be a lot quicker.
For me, I did a wetsuit test in the pool.
And found that I was significantly quicker wearing a wetsuit.
So there are ways to make sure that you do swim faster
when you make that transition,
but I find it does take quite a bit of practice
and getting used to swimming in a wetsuit,
get used to swimming in the open water to be able
to get to that point where your speed is
essentially the same.
One thing that it took me a long time to learn was how to draft.
Drafting in open water swimming can save up to 34% of your energy
and if you can draft well
then not only will you be swimming faster
but you're going to save a lot of effort as a result.
Now there's two different ways to draft.
One is on the hip, one is on the feet. Now I prefer and
I teach most of my swimmers to draft
at the feet directly behind the other person because this is
This is where you're going to impact
the person in front of you the least.
And this is also where it's typically
a little bit easier to draft as well.
So drafting on the feet,
try to stick as close to the other person as you can
without constantly tapping their feet.
If you're annoying them, they're going to get annoyed
and they might look to retaliate as a result.
But they are also going to kind of get a bit annoyed.
So if you can just sit behind someone,
avoid touching their feet as best as possible,
and just kind of sit in there without them knowing,
then you're likely to get a much better draft
and pull along as you're doing it.
Now, you might need to adjust your hand entry.
If you do get too close, then you're likely to hit them.
So maybe you've just got to be a little bit wider
with the entry and extension.
But you can save so much energy doing that.
For example, in a pool, I used to train in a 25-meter pool,
and I could do my 400s 15 seconds faster
when I was drafting straight behind a faster swimmer.
No extra effort.
It was actually easier when I sat right behind him.
And sometimes it can be even more than that.
So it's worth practicing drafting.
Now, the other way is drafting on the hip.
And you can get a really big pull along drafting right next to someone.
So your shoulder is kind of just behind their hip
and you're sticking pretty close to them
because you can see when someone's swimming,
especially a fast swimmer, they have this
wake coming off their hips, like this V coming off it.
You can almost ride that wake and get a really good pull along.
The downside to that is that if you're right next to someone,
you can take their water.
You can almost sort of pull through where they would
be about to pull through.
So you can take their water and slow them down.
And it feels really heavy if you've got someone drafting off your hip.
So it's good if you're looking to maybe overtake someone trying
to tire them out but if you're
looking to gain an advantage I think it's better in most cases to try
and sit at the feet rather
than trying to slow that swimmer down unless
maybe you're looking to finish a race and
make their swimming feel really heavy.
A big part of open water swimming is pack swimming,
getting used to swimming with others
around you and this is something that takes quite
a bit of practice to do and with the
more you do, the easier it's going to get.
Now when you are swimming with other people around you,
you might need to adapt or change
your stroke to account for that.
For example, if someone's really close to you,
maybe it's hard to get your arm out
comfortably. Maybe you can't recover over
the water as well as you normally would.
So sometimes I'll find you have to come over somewhat straight,
maybe enter kind of straight
as well, or maybe you have to enter wide to avoid hitting someone.
So you will have to make these
changes to the way that you're swimming
if you are surrounded by a lot of people,
and that's okay. The main thing is do not stop.
So let's say someone maybe tries to swim over
the top of you or they push you down,
don't stop because if you've got 15 swimmers
behind you they're just going to swim into you
and that's that whole part of don't be a victim.
So just make sure you always keep swimming.
Adjust a stroke if you have to,
and just get used to being surrounded by other people.
Maybe you'll cop an elbow.
Sometimes that happens.
People aren't necessarily trying to do that,
but sometimes that will happen.
So you just have to be prepared to be bumped around a little bit.
Now the other part of that as well
is if you find you're really stuck with someone maybe in
front of you, it's okay to kind of roll over the top of them.
Meaning let's say someone's here,
you're slightly behind them and you need to get over in this direction.
You can kind of lift your
chest up a bit and just slide over the top of their legs
or over their hips to get across them.
It's a pretty common technique,
especially if you're going in towards a buoy turn and you need to
change your your position you can get used
to sliding over the top of someone.
Now I'd suggest practicing
that with a with a friend or someone that you know
but that is a very valid way to change
your positioning especially as you're
going into a turn. The right equipment can make the
difference between being a 140 swimmer compared to a 150
swimmer. So equipment that you might need when it
comes to open water, a wetsuit especially down here in
I'm here in Victoria where I live, so a good wetsuit goes a long way.
The difference in the high level wetsuits
and the cheaper wetsuits is typically the
material that they use and sometimes the cut of the wetsuit as well.
Now depending on what pace you're
at and how seriously you're taking your swimming in your
triathlon, a mid-range wetsuit might be more than enough.
So sometimes the mid-range wetsuits will
have slightly thicker material
which means that they'll actually last a bit longer.
than the more expensive wetsuits
because the more expensive wetsuits have thinner material
usually through the shoulders so they're more flexible
but they won't necessarily last as long.
So there's a sweet spot there and I think the majority of people
can do really well with a mid-range wetsuit.
Especially one that's designed well,
that has good freedom through the shoulders, it's
got a good cut of the wetsuit.
Something like the Great Ocean Wetsuits Silver range
is more than enough for most people.
So make sure you get yourself a good wetsuit.
When I've done testing between sleeve and short sleeve wetsuits,
I've been a little bit quicker with a long sleeve wetsuit.
I don't know the difference that it makes
for most people, but personally, when I have tested it,
I've been a couple of seconds quicker
per 100 with a long sleeve wetsuit.
And my guess as to why that is, is because you've got a little
bit more thickness here. So you've got a slightly bigger paddle.
You've also got a little bit more
buoyancy as well. So it might just sit you up a little bit more.
And sometimes the material on
On the inside of the arms can provide
a bit of surface drag, so a bit more grip.
So that's why I think it can
be slightly faster with a long sleeve wetsuit.
But if you find that you need to tire through the shoulders a lot,
well yeah, maybe you're better off going with a short sleeve wetsuit.
The other thing is a good pair of goggles,
so making sure that you've got goggles with
good view, they don't leak,
make sure they've got some rubber around the outsides, so if
you do cop an elbow, then you're not going
to finish up with a black eye, and making
sure that you've got goggles that's got good anti-fog to them,
or they're a fairly new
pair of goggles, so they're not going to fog up,
because I've been in races where I couldn't
see where I had to go, because I was wearing
an old pair of goggles without good anti-fog,
And that...
Just ruins the race because if you can't see where you're going,
you might be swimming 20% extra when you don't need to.
If you prefer to breathe to one side, that is totally fine.
But you might want to develop your bilateral breathing.
Your ability to breathe to the other side comfortably
and swim at the same paces
when you're breathing to your preferred side.
Because when it comes to open water swimming,
you never know where you're going
to be getting waves and wind and chop from.
And if you are used to breathing on the left,
but you've got this swell coming in and hitting you in this direction,
you might have to turn to the right.
You might have to breathe to that opposite side,
at least for part of the race.
So you don't want to get out there and find that you're just stuck
because you can't breathe the opposite side.
So it's worth developing that skill as part of your swimming.
It's not to say you have to do 50% to your left, 50% to your right.
For me, I'll do 20 or 30% of my swim session to my non-preferred side,
but the rest will be to my preferred side.
So it's a skill worth developing if you
are doing any kind of open water swimming.
One tip I learned when it comes to swimming in cold water is to,
if you can't get in and do a
pre-race warm-up, make sure you get some water
and splash your face before you get in. That takes
away that cold shock that you'll often get where it takes away
your breath when you hit the cold
water. So just making sure that you wet your face
and wet your cheeks with that water before you
you get in and race just to get rid of that shock factor
and if you if you can
Trying to do some sort of land-based warm-up before you're about
to race even if it's like
a bit of skipping or a light jog
or some arm swings just something to kind of get the blood
moving to warm you up a little bit before you go
into this this cold water. Now if it's
if you're doing something long like an English channel swim well that's
It's gonna be a different type of event
and you need to make the changes to allow for that.
But for anything that's a shorter distance
and has some cold water,
there are those ways to get rid of that cold shock factor.
Depending on where you swim,
there's going to be currents and tides
affecting the flow of the water.
And we see this happen a lot here in Australia.
Many of our races are on open beaches
or they're in bays where there is a lot of current.
So it's worthwhile testing that out.
If you can get into the water before a race
and see which way the water is moving and
maybe looking at the buoys and seeing if they're at an angle.
So let's say you've got a buoy and it's veering off in one direction.
You know the water is flowing that way.
Or if you've got waves of swimmers before you,
you can see which way they're getting pushed.
So for example, the Noosa Tri a couple years ago,
there was pretty wild weather,
pretty wild conditions and a lot of waves.
And there was people who were leaving from the start
line and trying to get out to the first buoy.
There was a heap of current going down the beach,
so a lot of them didn't even get to the first buoy
because they got swept so far.
When it came time for the pros
to race they ended up running 150 meters down the beach
getting in at that point
and then they kind of got pushed across the first buoy
but there's nothing that they could do to swim,
at the same speed that the current was going
so sometimes you it's worthwhile just seeing what the
waves are doing before you and I for a lot
of the races here where I swim quite often there is a bit
of current so I'm looking at which way are people veering
when it comes to that first swim out to
the buoy so knowing that being prepared
for that can help you place a lot higher in your swims than
what you might used to be doing if you're quite new
to open water swimming and you're not quite
Quite comfortable.
Amongst other people and in the open water,
try to place yourself when you're entering the water,
just away from the pack, away from the masses.
Give yourself five or 10 meters
so you're not getting swum over the top of it. Now,
If you are looking to be competitive and have a good race,
you want to make sure that you
position yourself so that you can hopefully get to the buoy first.
But if you're not very comfortable, give yourself some space.
Take a slightly wider berth until you get
comfortable being amongst other people.
Now, I've heard stories of people getting swum over
and pushed under and things like
that.
It does happen.
But the good swimmers,
if you know you've got good swimmers coming up behind you.
They're not trying to swim over the top of you.
They would prefer to just go alongside you
or just go around you because that's going
to make them faster.
So they're not looking to try and push you down
and get you under the water or swim over
the top.
Now, yes, it does happen sometimes,
but people aren't always out for that.
So just know that, all right, if you do hold your line,
yes, maybe people will pass you.
And it's likely that if you are getting pushed under,
well, look, maybe they just saw you at the last minute.
Okay, but just keep swimming, keep moving,
and as best you can, try to not be a victim.
Just keep it going and get your breath back if you need to.
One thing that I find is good to know
for people who aren't that comfortable out there
is if you get tired and you're starting to run out of breath,
maybe you're starting to panic a bit,
Just roll onto your back, just be on your back,
have your head out of the water,
have a light kick or a light scull
if you need to, get your breath back,
slow your breathing down and then you can go again.
And that way you can also see what's
coming behind you. That's a good way just to reset
and start again if you find that
You maybe got uncomfortable
or starting to panic a little bit in the open water.
When you're finishing a race you might be coming onto the beach
and a good marker to know when
should I stand up is roughly
when your fingers start to hit the sand because that way you know
okay well that's going to be slightly shallower than waist depth
and that's a time where you can
start to stand up and then start to run through the water.
Now if you're more elite level if you
You have a rough idea of.
Of where the depth of the water then you can start
to stand up slightly before that and you can start to duck dive
But that's probably a slightly more advanced skill.
So when your fingers hit the sand
That's when you should start to stand up for most people now
I've seen people slow themselves down
by 30 seconds coming out of triathlons
Because they start to stand up when they're this deep
and because they can see the bottom. I think alright
I'm just going to stand up. I'm just going to walk through the water
If you can just keep swimming until those fingers hit the sand,
you're going to be at the beach or at the shore much quicker.
So if you find yourself just wading through the water from here on,
it's too much. You're probably going to be a lot slower.
So if you can just hit the sand, that's when you start to stand up.
If you don't have access to a lake or a beach,
and you can't get to the open water much at all to practice,
you can practice a lot of the skills that lead
to good open water swimming in the pool.
You can practice your sighting.
If you've got friends or other people that you swim with,
you can practice your pack swimming
and you can also practice your drafting.
So a couple of things that we'll do in the squad
that I swim in is we'll do a little bit of pack swimming,
especially in the lead up to our race season.
So we'll do something like eight 50s
where we'll get the slowest swimmers at the front,
fastest swimmers at the back
and we're all going fast for that 50.
Now the lead swimmers have to try and keep their lead
Fastest swimmers have to try and move through
and just getting used to being really tight,
having other people around
and just making sure that we learn how to adapt our stroke
and change it with the other people really close.
The other thing is drafting.
So a set that I love is what we call LA Freeway.
So we'll do it in groups of three.
And we'll swim 50 meters,
where the first two swimmers will push off directly behind one another.
The third person will push off,
and then they've got to overtake those other two swimmers.
They've got to make their way around.
By the end of the 50, they need to have overtaken them.
And you get a really good draft at the start,
and then you get a bit of a
draft as you're coming up the side of them.
But then you've got to work really hard to get
in front. But it's a good way to practice drafting,
practice swimming close.
And also just to get used to drafting from the hip
and drafting from the feet as well.
So those things you can practice in the open water.
Sometimes you can practice your buoy turns in the pool
as well if you take out a couple of lane ropes.
So many of the skills you can get used to in the pool.
But the one thing you can't get used to is those choppy conditions.
That is where...
Experience and practice really pays dividends
if you can get yourself to the open water
once a week for six weeks leading up to your open water swim.
That can make such a difference.
And if you're not comfortable in the open water
or you're going by yourself, just play
it safe.
Maybe you have to stick by the shore.
Maybe you can't go too deep,
but there are usually ways to get that open water swimming
for most people, depending on where you live.
When it comes to race strategy and knowing how to pace yourself
the biggest mistake most new swimmers make
is that they go out too hard.
They get really excited and really nervous and
maybe a bit anxious for the first two or three hundred meters
and they go straight to that top end speed
Where the heart rate is 190.
When in reality, it really should be 140 or 150 for the race.
So the main thing that I like to make sure my swimmers do
for that first part of the race is go out strong.
But we're looking for easy speed.
We're looking to go out with good speed
but keep that heart rate under control.
If you feel like you're starting to get too out of breath,
where you couldn't hold this pace,
where you couldn't settle the heart rate back down
by the time you're into the thick of the race,
then you've gone too hard.
So I want you to go out
and just always think about keeping that heart rate
just below that level where you know it's going to be too much.
So just looking for that effort level.
And keeping it there.
So the first 200 or 300, looking to go strong.
And then as soon as you can, just settle into that rhythm
and tempo that you know you can hold for the rest of the race.
And depending on whether it's a triathlon or just an open water swim,
the speed will change within the race.
In an open water race, you're probably going
to bring it home hard the last 100 or 200.
So you're looking to have that extra push at the end.
In a triathlon, may not be the case.
Maybe you're just looking to be consistent throughout it.
And you might just want to bring your legs
into the last 100 meters of the swim
just to get a little bit of blood flying again
so that you're ready for the transition
and ready for the bike.
So your pace and your strategy might change
depending on the event that you're doing.
But just make sure you don't go out too hard.
That is the number one mistake
that I see most people making
when it comes to their open water swims.
If you want hands-on experience
and coaching with your open water swimming,
come and join us at one of our swimming camps.
We run them in the Galapagos Islands,
Maldives, Thailand and the Whitsundays,
plus a bunch of other locations. So I'll
put the link in our description below.
Thanks for watching. Here is another
video where I talk about how to transform
your freestyle technique in 33 minutes.
