What happened: Solveig Lovseth outlined the physical toll of preparing for the event's 2.4-mile swim, 112-mile bike ride, and 26-mile run. The race is contested in searing Hawaii heat.

Why it matters: The Ironman is considered one of the most brutal endurance tests in sports. Her approach highlights the extreme conditioning required to become the world's fittest woman.

What to watch: Competitors continue to study elite routines as they prepare for future triathlons.