They keep saying: Age is just a number. We keep hearing it and take it with the usual nonchalance until someone like Natalie Grabow comes along and proves that statement true with her determination, might, and achievement.

At an age when many people slow down, Natalie Grabow is pushing forward – and pushing hard. At 80 years old, she has become the oldest woman ever to finish the Ironman World Championship in Kona, Hawaii. Her time: 16 hours, 45 minutes, 26 seconds, beating the 17-hour cutoff and setting a new age-group record. But her achievement is not just about crossing the finish line; it’s about the years of training, dedication, discipline, and strategy that got her there.

Grabow did not start life as a triathlete. She began running 5K and 10K races in her middle age. It was only later, in her 60s, that she learned to swim and embraced the full triathlon challenge. Over the decades, she built fitness, skill, resilience, and mental strength. In preparation for her record-breaking Kona run this year, she followed a daily training routine tailored to her age, balanced rest, mobility work, and nutritional support. And now, many of us see her as a living example of how age is just a number if discipline, intelligent training, and passion carry you – as we should.

Here, in this guide, let’s dig deep inside her fitness routine: how she trains swimming, biking, and running; how she manages strength work, recovery, nutrition, and injury prevention; how she adapts to her body’s limits; and what motivates her to keep going.