Age-group thresholds

IRONMAN 70.3 Monterrey 2024 · 1,277 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 980 4:18:55 4:41:32 4:52:14 5:09:10 5:50:29 3:56:29
M18-24 103 4:11:30 4:44:48 4:54:41 5:06:34 5:49:49 4:06:17
M25-29 84 4:08:26 4:26:58 4:33:50 4:54:29 5:35:16 4:08:26
M30-34 137 4:14:48 4:29:38 4:47:31 4:58:19 5:35:46 4:05:10
M35-39 186 4:21:19 4:39:31 4:49:27 5:00:43 5:38:05 4:19:18
M40-44 169 4:26:03 4:43:38 4:53:33 5:09:18 5:47:07 3:56:29
M45-49 133 4:41:28 4:56:52 5:07:16 5:25:22 6:13:00 4:40:46
M50-54 91 4:28:48 5:02:30 5:17:05 5:47:20 6:25:43 4:28:48
M55-59 51 4:43:20 5:00:53 5:08:49 5:27:31 6:06:05 4:43:20
M60-64 23 4:41:17 5:18:32 5:25:15 5:32:06 6:26:48 4:41:17

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 297 4:42:09 5:02:56 5:15:43 5:31:24 6:14:33 4:28:08
F18-24 27 4:42:09 4:46:37 4:55:19 5:19:10 5:55:49 4:42:09
F25-29 37 4:43:42 4:47:45 4:59:09 5:18:15 5:57:12 4:43:42
F30-34 50 4:28:42 4:59:04 5:09:18 5:22:07 5:54:38 4:28:42
F35-39 38 4:28:08 5:09:01 5:10:17 5:28:47 5:54:05 4:28:08
F40-44 56 5:02:56 5:05:47 5:26:17 5:43:59 6:19:49 5:02:56
F45-49 42 5:05:32 5:22:04 5:26:54 5:55:01 6:41:26 5:05:32
F50-54 27 5:26:07 5:36:50 5:39:40 5:55:28 6:37:47 5:26:07
F55-59 10 5:26:25 5:26:25 5:26:25 5:53:33 6:04:04 5:26:25
F60-64 6 6:14:43 6:14:43 6:14:43 6:20:01 6:30:30 6:14:43

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.