Age-group thresholds

IRONMAN Wisconsin 2005 · 1,681 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 1,257 9:51:19 10:55:19 11:33:34 12:13:18 13:40:32 9:01:34
MPRO 24 9:01:34 9:06:47 9:08:46 9:21:03 9:41:50 9:01:34
M18-24 61 10:37:51 11:30:19 11:33:34 12:13:35 13:19:32 10:37:51
M25-29 163 10:30:54 10:50:42 11:39:17 11:56:19 13:24:49 10:29:36
M30-34 205 10:22:17 11:03:15 11:37:06 12:06:23 13:32:14 10:07:56
M35-39 295 10:28:44 11:04:52 11:33:10 12:10:22 13:38:12 10:17:45
M40-44 249 10:15:19 11:13:48 11:33:30 12:19:06 13:48:20 9:51:19
M45-49 151 10:44:32 11:17:51 11:50:25 12:41:22 13:56:58 10:37:46
M50-54 70 10:50:38 11:42:17 12:31:35 12:51:33 14:09:16 10:50:38
M55-59 31 11:37:45 12:12:05 12:33:16 13:59:26 15:09:16 11:37:45
M60-64 5 13:49:31 13:49:31 13:49:31 13:49:31 15:03:30 13:49:31

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 424 10:39:34 11:45:55 12:13:46 12:45:16 14:18:22 10:11:22
FPRO 13 10:11:22 10:11:22 10:18:30 10:24:21 10:53:03 10:11:22
F18-24 23 11:04:40 12:01:09 12:08:18 12:38:25 14:46:24 11:04:40
F25-29 75 11:13:17 11:45:55 11:57:07 12:27:34 13:49:49 11:13:17
F30-34 98 11:23:03 11:57:51 12:13:46 12:44:30 14:12:19 11:23:03
F35-39 93 11:18:29 12:09:03 12:20:39 13:07:55 14:20:53 11:18:29
F40-44 67 12:04:16 12:17:14 12:27:14 13:18:14 14:45:37 12:04:16
F45-49 36 11:10:56 11:59:39 12:26:55 13:22:15 14:29:27 11:10:56
F50-54 14 13:41:36 13:41:36 13:44:44 14:10:36 15:37:38 13:41:36

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.