Stories from the results
Studies of every IRONMAN and 70.3 result: fast courses with slow medians, the most stacked age-group fields, race days that played slow, courses that changed, and who the age-graded slots sent to the World Championships.
Age-graded slots, year one: who made it to the 70.3 Worlds in Nice
The first 70.3 Worlds of age-graded slots sent more women and older athletes to Nice, and fewer young men. Who gained, who lost, and where a slot was hardest.
· 5 min read
IRONMAN Cozumel 2025: the men's front got an hour faster
Tenth place in M50-54 came 1 hour 39 minutes earlier than in 2024, on a similar day. With the course taken out, Cozumel's men's front went from soft to stacked.
· 2 min read
Fast times, ordinary course: why a race's median finish misleads
Frankfurt has the 5th-fastest median finish of 39 IRONMAN races on a course ranked 20th; California's course is 2nd, its median 21st. The field explains it.
· 2 min read
Where the front is stacked: the most competitive IRONMAN age-group fields
Course and day taken out, Lanzarote's age-group top tens are the strongest at any IRONMAN; Malaysia's and the Philippines' the softest, 12 to 18% slower.
· 2 min read
It wasn't you, it was the day: the race days that played slowest in 2025–26
70.3 Panama 2025 played 7.1% slower than its usual, about 25 minutes on a 5:45 finish. The race days of 2025–26 furthest off their course's usual speed.
· 2 min read
New course, new times: why a race's old results don't carry over
A third of IRONMAN and 70.3 races have changed course at least once. 70.3 Calgary has raced four courses, and its bike swung about 20% between two of them.
· 2 min read