The Simple Routine Behind the World's Oldest Ironman Champion ft. Natalie Grabow

How is an 80-year-old still racing Ironmans?

Natalie Grabow is 80 years young—and the oldest woman ever to complete the Ironman World Championship. She learned to swim at 59 (at her local Lakeland Hills Family YMCA), and just two years later became an Ironman. Since then, she’s completed 11 Kona Ironmans—each one a 2.4-mile swim, 112-mile bike, followed by a full 26.2 mile marathon.

Triathlon isn’t a hobby for Natalie—it’s her life. She races 2–3 times a year and trains nearly year-round, with training days that can last 5–6 hours at a time or more.

In this episode, we follow Natalie through her training, recovery, and mindset—and explore what it really takes to stay this strong, disciplined, and alive at 80.

CHAPTERS:
00:24 Swim
02:25 Run
08:08 Morning Routine
08:43 Breakfast (+ Meals/Snacks)
10:03 Natalie’s Backstory
12:49 Bike
15:13 Stretching
16:30 Discipline
17:41 Home life
18:52 Parting wisdom

BIO:
Sierra Clark is a health creator with a Neuroscience degree from Brown University. After six months documenting her own journey on Bryan Johnson’s Blueprint, she now hosts Human, a show exploring the science of optimal health and longevity with biohackers, experts, and extraordinary individuals.