Age-group thresholds

IRONMAN Chattanooga 2017 · 1,977 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 1,340 9:45:44 10:38:35 11:09:17 11:56:30 13:27:29 9:18:29
M18-24 24 10:09:13 11:31:14 11:37:44 11:45:09 13:41:18 10:09:13
M25-29 91 9:30:07 10:22:10 11:01:06 11:57:58 13:02:35 9:30:07
M30-34 149 9:26:35 10:09:56 10:39:40 11:20:35 13:04:10 9:25:01
M35-39 166 9:25:43 10:27:28 10:42:05 11:30:33 13:10:40 9:18:29
M40-44 266 9:39:55 10:31:56 11:12:07 11:53:35 13:14:54 9:20:55
M45-49 252 9:55:19 10:42:45 11:14:15 12:01:20 13:25:19 9:48:45
M50-54 217 10:22:42 10:50:22 11:34:15 12:24:53 13:44:48 9:45:44
M55-59 108 10:56:11 11:15:33 11:39:32 12:39:28 14:11:49 10:27:25
M60-64 47 11:04:42 11:52:17 12:35:44 13:30:01 14:36:29 11:04:42
M65-69 15 12:51:15 12:51:15 13:12:42 13:53:17 14:52:52 12:51:15
M70-74 5 13:41:46 13:41:46 13:41:46 13:41:46 15:55:57 13:41:46

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 637 9:47:57 11:13:06 11:52:24 12:41:14 14:06:50 9:05:33
FPRO 10 9:05:33 9:05:33 9:05:33 9:28:46 9:40:05 9:05:33
F18-24 10 11:21:01 11:21:01 11:21:01 12:19:00 14:08:46 11:21:01
F25-29 26 10:51:33 11:07:20 11:10:01 12:15:10 13:43:53 10:51:33
F30-34 64 10:34:37 10:53:11 11:40:36 12:05:50 13:34:01 10:34:37
F35-39 114 10:49:11 11:23:53 11:56:14 12:35:19 13:51:22 10:28:50
F40-44 143 10:51:38 11:16:40 11:40:55 12:29:51 13:41:30 10:51:02
F45-49 121 11:13:06 11:54:38 12:22:09 13:07:41 14:19:12 11:04:31
F50-54 91 11:42:17 12:15:57 12:30:05 13:32:38 14:42:25 11:42:17
F55-59 35 11:15:44 11:34:59 11:49:54 12:53:23 14:21:55 11:15:44
F60-64 23 11:49:21 12:04:08 12:57:54 14:05:49 15:12:06 11:49:21

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.