Age-group thresholds

IRONMAN Arizona 2008 (b) · 1,689 finishers

How to read it: in each row, the time under "Top 10%" is the time of the slowest athlete who still made the fastest 10% of the age group. Beat that time and you are in. Age groups with fewer than 5 finishers are omitted. Finishers only.

Men

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 1,321 9:21:15 10:14:30 10:43:32 11:37:23 13:22:01 8:34:19
MPRO 20 8:34:19 8:34:19 8:34:36 8:35:32 9:08:04 8:34:19
M18-24 54 9:06:09 10:29:46 11:04:24 11:52:55 13:52:45 9:06:09
M25-29 125 9:28:30 9:58:37 10:25:54 11:13:56 12:47:28 9:25:48
M30-34 232 9:33:38 10:07:51 10:47:47 11:30:07 13:12:03 9:25:17
M35-39 313 9:34:06 10:18:15 10:43:32 11:33:17 13:22:11 9:30:15
M40-44 265 9:47:01 10:26:32 10:51:50 11:52:43 13:21:55 9:31:53
M45-49 166 9:45:06 10:23:41 10:42:57 11:51:22 13:20:36 9:21:15
M50-54 81 10:14:40 11:07:30 11:52:05 12:37:07 14:43:52 10:14:40
M55-59 39 10:27:39 10:50:57 11:51:54 12:47:09 14:20:19 10:27:39
M60-64 19 11:09:21 11:09:21 11:18:20 11:53:21 14:47:29 11:09:21

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 368 9:34:18 10:48:02 11:27:46 12:23:44 14:17:55 9:14:49
FPRO 20 9:14:49 9:14:49 9:25:52 9:34:18 10:07:38 9:14:49
F18-24 7 11:19:19 11:19:19 11:19:19 11:36:25 13:35:32 11:19:19
F25-29 42 10:51:26 11:13:40 11:32:55 12:24:48 13:56:01 10:51:26
F30-34 71 10:03:48 11:34:04 11:54:53 12:36:37 14:08:38 10:03:48
F35-39 79 10:42:07 10:49:18 11:27:46 12:27:44 14:14:05 10:42:07
F40-44 78 11:03:42 11:54:34 12:16:17 12:53:02 14:49:40 11:03:42
F45-49 51 11:57:24 12:03:52 12:24:16 13:46:10 14:21:26 11:57:24
F50-54 16 12:13:02 12:13:02 12:37:30 14:28:30 15:26:43 12:13:02

Source: Seffrin A., Nikolaidis P.T., Andrade M.S., Villiger E., Rosemann T., Weiss K., Ferreira D., Knechtle B. (2026). A dataset of 2.7 million IRONMAN triathlon records with transition times (2002-2026), v3.0.0. Zenodo. CC BY 4.0. doi:10.5281/zenodo.22097794.