Age-group thresholds
IRONMAN 70.3 Higashimikawa Japan · 1 editions (2023) · 637 finishers
Editions: 2023
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 | 567 | 4:23:22 | 4:54:58 | 5:08:39 | 5:27:19 | 6:06:43 | 4:12:17 |
| M18-24 | 13 | 4:17:03 | 4:17:03 | 4:39:46 | 4:54:30 | 5:22:41 | 4:17:03 |
| M25-29 | 19 | 4:12:17 | 4:12:17 | 4:19:05 | 4:32:16 | 5:16:50 | 4:12:17 |
| M30-34 | 21 | 4:40:23 | 4:47:31 | 4:58:56 | 5:19:06 | 5:51:54 | 4:40:23 |
| M35-39 | 54 | 4:17:39 | 4:32:05 | 4:56:10 | 5:07:12 | 5:44:15 | 4:17:39 |
| M40-44 | 81 | 4:22:12 | 4:49:42 | 5:00:54 | 5:19:09 | 5:59:52 | 4:22:12 |
| M45-49 | 92 | 4:48:54 | 5:11:13 | 5:17:52 | 5:27:50 | 6:05:09 | 4:48:54 |
| M50-54 | 116 | 4:45:26 | 5:05:14 | 5:20:15 | 5:37:43 | 6:05:20 | 4:35:47 |
| M55-59 | 86 | 4:54:33 | 5:16:56 | 5:21:47 | 5:48:08 | 6:21:06 | 4:54:33 |
| M60-64 | 59 | 5:03:17 | 5:10:16 | 5:35:42 | 5:48:47 | 6:32:07 | 5:03:17 |
| M65-69 | 17 | 5:28:21 | 5:28:21 | 5:28:29 | 5:48:58 | 6:41:47 | 5:28:21 |
| M70-74 | 7 | 5:34:06 | 5:34:06 | 5:34:06 | 6:41:43 | 7:25:24 | 5:34:06 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 70 | 4:52:04 | 5:03:14 | 5:17:08 | 5:41:19 | 6:17:52 | 4:52:04 |
| F25-29 | 6 | 4:52:04 | 4:52:04 | 4:52:04 | 4:54:13 | 5:03:14 | 4:52:04 |
| F30-34 | 8 | 5:28:20 | 5:28:20 | 5:28:20 | 5:42:35 | 6:02:40 | 5:28:20 |
| F35-39 | 12 | 4:52:56 | 4:52:56 | 5:04:12 | 5:06:07 | 5:45:10 | 4:52:56 |
| F40-44 | 8 | 5:34:06 | 5:34:06 | 5:34:06 | 5:37:48 | 6:19:02 | 5:34:06 |
| F45-49 | 11 | 5:25:39 | 5:25:39 | 5:39:55 | 5:58:03 | 6:50:17 | 5:25:39 |
| F50-54 | 11 | 5:17:08 | 5:17:08 | 5:44:35 | 5:58:04 | 6:12:39 | 5:17:08 |
| F55-59 | 7 | 5:42:14 | 5:42:14 | 5:42:14 | 5:51:10 | 7:26:31 | 5:42:14 |
| F60-64 | 7 | 5:45:50 | 5:45:50 | 5:45:50 | 6:03:23 | 6:20:55 | 5:45:50 |
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.