Age-group thresholds

IRONMAN Indiana · 1 editions (2021) · 1,243 finishers

Editions: 2021

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 913 9:19:59 10:17:20 10:48:44 11:34:37 13:11:45 8:45:03
M18-24 42 9:19:59 9:54:25 10:49:35 11:37:44 13:44:12 9:19:59
M25-29 85 8:45:03 9:51:20 10:22:43 11:20:37 12:44:40 8:45:03
M30-34 120 8:58:59 9:41:35 10:21:15 10:53:36 12:38:57 8:51:59
M35-39 120 9:00:16 9:46:20 10:17:20 11:19:58 12:52:04 8:58:22
M40-44 131 9:47:10 10:26:45 10:51:00 11:29:54 13:06:23 9:42:43
M45-49 121 9:41:15 10:23:30 10:57:04 11:26:00 13:03:01 8:57:09
M50-54 167 10:04:19 10:44:20 11:00:19 12:10:18 13:34:04 9:20:39
M55-59 84 10:11:17 10:40:45 11:06:15 12:12:33 13:39:40 10:11:17
M60-64 29 10:40:20 11:40:54 11:51:21 12:52:04 13:53:33 10:40:20
M65-69 12 12:23:21 12:23:21 13:58:16 14:30:42 15:08:05 12:23:21

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 330 10:14:10 11:02:09 11:29:20 12:21:28 13:58:23 9:56:43
F18-24 13 11:09:07 11:09:07 11:20:04 11:42:43 13:51:26 11:09:07
F25-29 32 10:25:21 10:35:00 11:01:25 11:57:41 13:30:13 10:25:21
F30-34 35 10:04:03 10:14:10 10:47:16 11:27:15 12:43:09 10:04:03
F35-39 38 9:56:43 10:09:29 10:25:58 11:21:10 13:30:07 9:56:43
F40-44 60 10:37:58 11:38:54 12:30:40 12:57:05 14:15:03 10:37:58
F45-49 55 10:21:05 11:22:28 11:46:24 12:38:56 13:59:50 10:21:05
F50-54 50 11:00:17 11:20:11 11:28:07 12:04:45 14:23:08 11:00:17
F55-59 31 11:46:47 12:15:48 12:45:36 13:20:34 14:44:39 11:46:47
F60-64 13 12:00:07 12:00:07 12:01:10 12:13:53 13:25:32 12:00:07

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.