Age-group thresholds

IRONMAN Wisconsin 2003 · 1,536 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 1,212 9:50:48 10:42:00 11:15:47 11:50:33 13:16:49 8:55:26
MPRO 14 8:55:26 8:55:26 9:00:56 9:02:50 9:43:50 8:55:26
M18-24 76 10:00:19 10:35:35 11:12:31 11:36:38 13:28:25 10:00:19
M25-29 154 9:52:26 10:24:27 10:48:27 11:29:05 12:59:21 9:35:45
M30-34 285 9:50:48 10:41:07 11:24:36 11:52:15 13:13:43 9:32:03
M35-39 254 10:24:18 10:56:46 11:16:13 11:54:03 13:15:02 9:22:59
M40-44 211 10:30:26 10:53:25 11:19:57 11:52:13 13:16:43 9:51:32
M45-49 126 10:19:04 11:03:25 11:24:57 12:10:34 13:27:29 10:14:33
M50-54 57 11:16:32 11:26:37 11:36:48 12:30:00 13:55:10 11:16:32
M55-59 26 11:59:31 12:23:24 12:27:23 12:50:56 14:18:03 11:59:31
M60-64 7 13:33:19 13:33:19 13:33:19 14:10:09 14:28:10 13:33:19

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 324 10:25:41 11:23:24 11:55:49 12:32:11 13:54:43 9:46:28
FPRO 9 9:46:28 9:46:28 9:46:28 10:06:39 10:35:48 9:46:28
F18-24 28 11:25:54 12:00:11 12:01:46 12:34:25 13:48:13 11:25:54
F25-29 68 11:05:27 11:23:24 11:44:15 12:28:39 13:49:29 11:05:27
F30-34 84 11:01:11 11:49:42 11:55:49 12:16:53 13:44:46 11:01:11
F35-39 57 11:18:38 12:12:36 12:42:54 13:12:53 14:22:31 11:18:38
F40-44 49 11:05:10 11:42:02 12:02:27 12:30:40 13:44:52 11:05:10
F45-49 17 11:49:40 11:49:40 13:07:19 13:39:50 14:50:19 11:49:40
F50-54 11 12:19:04 12:19:04 13:54:26 14:09:56 15:16:04 12:19:04

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.