Age-group thresholds

IRONMAN Lake Tahoe · 2 editions (2013, 2015) · 2,678 finishers

Editions: 2013 · 2015

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 2,086 9:47:05 10:46:03 11:21:55 12:08:55 13:49:39 8:55:14
MPRO 24 8:55:14 8:57:53 9:02:55 9:09:09 9:23:45 8:55:14
M18-24 35 10:17:44 11:05:44 11:14:07 11:41:41 13:45:00 10:17:44
M25-29 143 10:10:27 10:34:03 11:13:12 11:50:56 13:40:18 10:04:24
M30-34 309 9:51:03 10:33:28 10:57:31 11:41:13 13:25:43 9:39:23
M35-39 362 10:05:13 10:49:31 11:33:26 12:03:47 13:36:56 9:49:25
M40-44 458 10:10:53 10:51:50 11:38:10 12:18:52 13:43:02 9:36:27
M45-49 368 10:00:43 10:59:33 11:24:43 12:04:54 13:55:30 9:46:56
M50-54 223 11:02:41 11:18:48 12:09:08 12:44:47 14:07:34 10:44:48
M55-59 110 11:15:42 11:57:33 12:19:02 13:13:30 14:53:24 10:46:09
M60-64 38 11:33:20 12:25:18 13:06:54 14:20:18 15:06:53 11:33:20
M65-69 13 13:56:54 13:56:54 14:39:37 15:04:02 16:14:24 13:56:54

Women

Age group Finishers Top 1% Top 5% Top 10% Top 20% Median Best
All age groups 592 10:28:55 11:39:50 12:17:29 13:01:47 14:48:59 9:58:53
FPRO 13 9:58:53 9:58:53 9:59:43 10:03:38 10:39:28 9:58:53
F18-24 14 12:03:45 12:03:45 12:32:02 12:36:26 13:41:22 12:03:45
F25-29 51 11:01:01 11:15:15 12:32:01 12:56:11 14:14:55 11:01:01
F30-34 112 11:29:55 11:48:35 12:05:36 12:50:11 14:24:26 11:05:34
F35-39 88 10:28:55 11:18:32 11:45:55 12:31:09 14:21:14 10:28:55
F40-44 132 11:47:47 12:26:21 12:42:57 13:28:08 14:54:49 11:31:22
F45-49 79 11:00:13 11:54:20 12:12:55 13:25:56 14:55:50 11:00:13
F50-54 71 11:55:06 12:34:04 13:18:36 14:02:29 15:30:40 11:55:06
F55-59 28 14:10:32 14:12:39 14:15:03 14:22:28 16:01:45 14:10:32

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.