Age-group thresholds

IRONMAN Maryland 2024 · 1,071 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 803 9:37:27 10:26:40 10:50:52 11:43:34 13:24:02 8:38:12
M18-24 64 9:51:56 10:29:42 10:37:46 11:26:25 13:14:56 9:51:56
M25-29 105 9:37:27 9:53:24 10:35:28 11:13:44 12:59:29 9:13:55
M30-34 114 9:13:18 10:26:40 11:01:52 11:34:16 13:13:40 9:07:54
M35-39 102 9:40:06 10:11:07 10:35:04 11:06:39 12:36:59 8:46:23
M40-44 105 9:26:21 10:29:31 10:48:58 11:43:34 13:13:30 8:38:12
M45-49 80 9:41:30 10:15:23 11:11:31 11:41:47 13:01:52 9:41:30
M50-54 106 10:16:50 10:41:09 11:39:39 12:14:43 13:42:23 10:15:15
M55-59 74 9:30:55 10:31:48 10:56:34 11:55:23 13:50:32 9:30:55
M60-64 39 11:22:30 11:42:27 12:38:51 12:57:49 14:12:23 11:22:30
M65-69 7 12:29:14 12:29:14 12:29:14 13:21:03 16:06:38 12:29:14
M70-74 6 12:51:52 12:51:52 12:51:52 13:40:21 14:33:59 12:51:52

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 268 10:04:28 10:36:26 11:13:00 12:06:36 14:10:27 9:55:43
F18-24 12 11:09:19 11:09:19 11:13:00 11:47:43 13:38:15 11:09:19
F25-29 32 9:56:58 10:29:35 10:52:23 11:34:27 13:10:32 9:56:58
F30-34 35 9:55:43 10:04:28 10:28:50 10:57:16 13:18:10 9:55:43
F35-39 25 10:23:37 11:40:58 11:46:18 12:24:11 13:43:05 10:23:37
F40-44 42 10:16:42 10:58:48 11:02:40 12:06:36 14:11:39 10:16:42
F45-49 34 10:31:39 10:38:18 10:51:56 11:40:24 13:33:41 10:31:39
F50-54 43 10:20:45 11:13:02 11:38:59 12:53:44 14:46:16 10:20:45
F55-59 33 12:30:13 12:37:13 13:22:33 14:01:08 15:05:56 12:30:13
F60-64 10 11:19:12 11:19:12 11:19:12 13:59:46 15:05:41 11:19:12

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.