Age-group thresholds

IRONMAN Wisconsin 2018 · 1,906 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 1,341 9:44:00 10:25:51 11:06:13 11:59:28 13:34:15 8:53:55
M18-24 54 9:36:55 10:16:43 10:56:44 11:46:45 13:10:57 9:36:55
M25-29 146 9:41:51 10:14:52 10:46:47 11:27:38 13:06:18 9:34:03
M30-34 170 9:26:48 10:09:56 10:25:51 11:30:31 13:15:57 8:53:55
M35-39 197 9:40:53 9:57:43 10:32:06 11:34:35 12:55:19 9:00:11
M40-44 225 9:52:47 10:38:27 11:08:41 12:03:58 13:38:13 9:28:01
M45-49 210 9:58:46 10:39:46 11:17:36 12:03:32 13:42:23 9:27:32
M50-54 166 10:24:09 10:57:22 11:32:55 12:22:23 13:58:47 10:17:13
M55-59 119 11:02:24 11:34:03 12:22:01 13:00:42 14:24:14 11:01:22
M60-64 43 11:34:24 11:41:10 12:09:33 12:59:40 14:16:29 11:34:24
M65-69 10 11:57:29 11:57:29 11:57:29 13:28:15 14:04:34 11:57:29

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 565 9:59:08 11:10:16 11:52:31 12:31:50 14:00:20 9:12:39
FPRO 10 9:12:39 9:12:39 9:12:39 9:47:06 9:59:08 9:12:39
F18-24 17 10:51:20 10:51:20 11:48:59 12:24:56 13:59:58 10:51:20
F25-29 53 10:25:17 10:58:40 11:58:35 12:29:02 13:52:18 10:25:17
F30-34 104 10:08:33 11:10:16 11:55:27 12:28:43 13:32:39 9:49:01
F35-39 105 10:37:12 11:23:39 11:57:43 12:27:25 13:46:00 10:32:29
F40-44 107 10:45:43 11:33:54 11:51:10 12:35:43 14:10:41 10:21:18
F45-49 83 10:46:13 11:52:31 12:24:31 13:05:21 14:40:59 10:46:13
F50-54 48 11:14:43 11:43:44 12:41:10 13:37:53 14:35:46 11:14:43
F55-59 20 11:35:13 11:35:13 12:02:35 12:36:26 14:27:59 11:35:13
F60-64 15 12:14:58 12:14:58 13:27:40 13:34:15 14:58:35 12:14:58

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.