She Learned to Swim at 59 Out of Embarrassment — At 80 She Became the Oldest Woman to Finish an Ironman World Championship
4 min read · RealCase summary
Natalie Grabow, of Mountain Lakes, New Jersey, learned to swim at age 59 in 2005 and competed in her first Ironman World Championship the following year at 60. She has now finished the race 11 times.
On October 11, 2025, at 80 years old, she completed the Ironman World Championship in Kona, Hawaii — the full 140.6-mile distance — in 16 hours, 45 minutes, 26 seconds, splitting 1:47:41 for the 2.4-mile swim, 7:51:27 for the 112-mile bike, and 6:40:11 for the 26.2-mile run, becoming the oldest woman ever to complete the race.
Her training includes waking between 5:30 and 6:30 a.m., running up to four times a week (capped around 18 miles total), swimming three times a week, and biking four times a week with Saturday rides running up to six hours — much of it done indoors to reduce injury risk.
"I don't feel old. So to me, it just was a race," she said. "This is my passion. This is what I love." Of continuing at her age, she has said simply: "There's no time limit" if health is maintained from early in life.
Key takeaways
- ›Learned to swim for the first time in 2005, at age 59, and completed her first solo triathlon the same year
- ›Qualified for and finished her first full Ironman World Championship in 2006, at age 60, placing third in her age group
- ›On October 11, 2025, at age 80, finished the Ironman World Championship in 16:45:26 — about 15 minutes before the cutoff — becoming the oldest woman ever to complete it
Original source
Read the original (NBC News)
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