| Event | 2017 SSE Airtricity Dublin - Marathon |
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| Name | John Brennan | Club | Race Number | 4817 | Date | 29/10/2017 | |
| Gender | Male | Gender Position | 1371 of 10700 | Category | M40 | Category Position | 369 of 2504 |
| Team | |||||||
| 10K | 00:47:54 | Stage Position | 2397 |
| Halfway | 01:40:19 | Stage Position | 2315 |
| 30K | 02:21:29 | Stage Position | 1867 |
| Gun Time | 03:19:58 | Overall Position | 1472 |
| Chip Time | 03:19:35 | Chip Position | 1498 |