Age-group thresholds

IRONMAN Wisconsin 2008 · 2,081 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 1,523 9:26:35 10:12:12 10:36:17 11:12:24 12:36:14 8:43:29
MPRO 18 8:43:29 8:43:29 8:55:50 8:59:39 9:13:38 8:43:29
M18-24 74 9:15:12 9:57:07 10:37:19 10:55:57 12:10:45 9:15:12
M25-29 148 9:34:30 10:05:27 10:30:50 10:50:59 12:13:18 9:24:41
M30-34 256 9:38:00 10:00:49 10:23:21 10:51:48 12:04:44 9:06:56
M35-39 329 9:48:19 10:15:37 10:38:03 11:09:37 12:26:31 9:20:05
M40-44 284 9:45:43 10:14:32 10:37:49 11:25:53 12:35:50 9:40:52
M45-49 191 10:12:20 10:37:09 11:01:39 11:51:09 12:57:42 9:33:36
M50-54 132 10:16:46 10:52:36 11:21:05 11:48:52 13:14:33 10:12:29
M55-59 57 10:14:59 11:32:30 11:50:35 12:46:12 14:06:35 10:14:59
M60-64 24 11:43:41 12:13:23 12:39:24 13:25:35 14:51:26 11:43:41
M65-69 8 12:36:52 12:36:52 12:36:52 13:21:01 14:38:35 12:36:52

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 558 10:11:14 11:08:56 11:40:27 12:26:30 13:48:59 9:47:25
FPRO 12 9:47:25 9:47:25 9:49:46 9:50:45 10:11:14 9:47:25
F18-24 25 10:47:29 10:53:38 11:29:23 11:38:13 12:51:57 10:47:29
F25-29 85 10:43:22 11:33:02 11:41:06 12:14:07 13:27:34 10:43:22
F30-34 106 10:38:24 11:03:54 11:52:35 12:25:43 13:45:51 10:33:37
F35-39 126 11:05:17 11:34:58 11:52:22 12:35:47 14:00:36 11:04:56
F40-44 103 10:49:49 11:27:02 11:46:24 12:36:05 13:48:05 10:34:52
F45-49 56 10:44:41 11:53:17 12:20:48 12:39:40 13:43:46 10:44:41
F50-54 35 11:45:56 12:09:12 12:30:28 12:47:43 14:56:31 11:45:56
F55-59 6 13:49:42 13:49:42 13:49:42 14:03:11 14:17:32 13:49:42

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.