Age-group thresholds

IRONMAN Santa Rosa · 3 editions (2017, 2018, 2019) · 4,689 finishers

Editions: 2017 · 2018 · 2019

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 3,530 9:20:26 10:03:05 10:40:33 11:30:59 13:07:03 8:42:02
M18-24 88 8:53:44 9:45:04 10:07:20 11:33:40 13:36:10 8:53:44
M25-29 267 9:01:57 9:23:24 10:00:04 10:56:46 12:39:03 8:51:27
M30-34 421 9:03:54 9:35:29 9:55:33 10:47:08 12:35:53 8:53:33
M35-39 539 9:15:14 9:44:25 10:15:21 11:07:02 12:41:56 8:42:02
M40-44 627 9:29:31 10:10:31 10:45:07 11:38:45 13:03:36 8:54:46
M45-49 669 9:43:45 10:19:02 10:48:46 11:31:25 13:14:35 9:22:32
M50-54 506 10:08:49 10:33:12 11:05:03 11:47:32 13:18:30 9:32:03
M55-59 243 10:01:23 11:08:07 11:44:32 12:24:18 13:50:22 9:45:40
M60-64 116 10:41:10 11:05:11 11:48:41 12:41:45 14:13:00 10:37:53
M65-69 40 11:10:13 11:13:49 11:46:50 13:21:20 14:42:12 11:10:13
M70-74 10 13:29:29 13:29:29 13:29:29 13:33:28 14:29:28 13:29:29

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 1,159 10:21:40 10:59:22 11:34:59 12:20:32 13:56:19 9:51:25
F18-24 25 10:22:44 11:23:45 11:32:15 11:48:51 13:03:38 10:22:44
F25-29 118 10:30:20 10:45:45 11:04:14 11:49:21 13:37:13 10:05:52
F30-34 161 9:58:45 10:34:57 11:04:14 11:55:37 13:36:56 9:58:04
F35-39 169 10:16:51 10:33:06 11:14:04 12:00:03 13:27:24 10:16:05
F40-44 218 10:36:10 11:19:17 11:54:55 12:32:00 13:56:50 9:51:25
F45-49 216 10:31:39 10:52:34 11:32:09 12:24:19 14:04:37 10:26:40
F50-54 133 11:02:03 11:35:43 11:46:58 12:29:17 13:54:44 10:46:56
F55-59 77 11:13:32 12:05:09 12:23:17 13:08:14 14:23:50 11:13:32
F60-64 32 11:41:14 12:12:35 12:20:06 13:24:56 14:22:12 11:41:14
F65-69 7 14:12:04 14:12:04 14:12:04 14:26:08 15:09:57 14:12:04

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.