Age-group thresholds

IRONMAN 70.3 Santa Cruz 2025 · 2,211 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 1,633 3:59:32 4:31:09 4:48:32 5:10:53 5:54:15 3:41:04
MPRO 39 3:41:04 3:42:52 3:44:49 3:50:57 4:00:54 3:41:04
M18-24 178 4:16:13 4:40:05 4:52:31 5:16:04 5:50:59 4:01:34
M25-29 317 4:15:37 4:35:18 4:49:41 5:11:56 5:53:56 4:13:22
M30-34 256 4:17:34 4:39:36 4:55:32 5:16:16 5:58:14 4:04:49
M35-39 206 4:24:48 4:35:02 4:51:31 5:06:47 5:52:50 4:19:07
M40-44 175 4:24:20 4:33:04 4:41:57 4:59:33 5:51:09 4:18:56
M45-49 137 4:28:39 4:46:33 4:58:17 5:25:20 5:54:09 4:22:23
M50-54 119 4:24:07 4:41:13 4:50:27 5:22:55 5:55:58 4:16:31
M55-59 99 4:36:36 4:46:21 4:58:24 5:21:32 6:05:06 4:36:36
M60-64 65 4:29:45 5:07:17 5:21:13 5:35:54 6:21:30 4:29:45
M65-69 28 4:45:11 5:02:34 5:24:26 5:46:04 6:28:13 4:45:11
M70-74 7 6:01:09 6:01:09 6:01:09 6:13:06 6:54:13 6:01:09

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 578 4:20:17 4:48:08 5:04:06 5:27:09 6:13:19 4:10:54
FPRO 26 4:10:54 4:12:43 4:16:33 4:20:17 4:28:19 4:10:54
F18-24 62 4:47:26 5:08:40 5:24:13 5:35:06 6:10:25 4:47:26
F25-29 135 4:47:01 4:59:07 5:08:32 5:28:15 6:11:08 4:38:01
F30-34 91 4:40:59 5:03:56 5:14:23 5:40:02 6:13:19 4:40:59
F35-39 59 4:46:37 4:55:41 5:04:06 5:14:45 6:06:01 4:46:37
F40-44 56 4:51:48 4:54:06 5:11:35 5:19:19 6:11:46 4:51:48
F45-49 39 4:48:37 5:13:36 5:24:13 5:44:47 6:27:30 4:48:37
F50-54 39 5:03:48 5:15:25 5:17:46 5:28:33 6:19:13 5:03:48
F55-59 43 5:13:12 5:17:23 5:21:17 5:47:25 6:29:33 5:13:12
F60-64 16 5:36:08 5:36:08 5:38:59 6:16:57 6:37:11 5:36:08
F65-69 7 6:13:24 6:13:24 6:13:24 6:38:41 7:04:21 6:13:24
F70-74 5 6:54:59 6:54:59 6:54:59 6:54:59 7:11:34 6:54:59

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.