Age-group thresholds

IRONMAN 70.3 Cozumel 2013 · 1,490 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 1,197 4:12:28 4:48:07 5:03:05 5:18:39 5:48:02 3:44:06
MPRO 18 3:44:06 3:44:06 3:44:46 3:48:30 4:01:31 3:44:06
M18-24 54 4:28:19 4:33:42 5:03:16 5:15:07 5:48:53 4:28:19
M25-29 133 4:27:44 4:44:02 4:59:34 5:10:27 5:46:43 4:25:10
M30-34 233 4:33:03 4:54:09 5:04:02 5:20:26 5:50:40 4:22:41
M35-39 284 4:35:21 4:51:58 5:02:37 5:16:59 5:45:54 4:26:03
M40-44 257 4:33:03 4:51:35 5:09:10 5:23:44 5:48:20 4:13:49
M45-49 122 4:52:44 5:03:54 5:13:38 5:19:38 5:45:14 4:44:46
M50-54 73 4:48:07 5:05:36 5:22:09 5:33:23 6:04:59 4:48:07
M55-59 16 5:06:26 5:06:26 5:25:42 5:35:15 5:57:15 5:06:26

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 293 4:15:38 5:00:32 5:14:53 5:29:18 6:01:04 4:09:58
FPRO 9 4:09:58 4:09:58 4:09:58 4:13:12 4:30:28 4:09:58
F18-24 16 4:55:06 4:55:06 5:00:48 5:26:17 5:49:56 4:55:06
F25-29 39 4:45:07 4:54:30 5:16:11 5:29:37 6:00:08 4:45:07
F30-34 57 5:00:16 5:03:05 5:12:10 5:20:38 6:08:25 5:00:16
F35-39 67 5:04:00 5:06:19 5:24:42 5:41:06 6:07:00 5:04:00
F40-44 58 4:44:13 5:09:50 5:16:18 5:38:50 5:59:17 4:44:13
F45-49 30 5:22:17 5:23:39 5:24:48 5:31:13 6:12:53 5:22:17
F50-54 12 5:37:47 5:37:47 5:42:14 5:50:49 5:59:37 5:37:47

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.