| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Thomas Brennan | Club | Gowran AC | Race Number | 3097 | Date | 28/10/2013 |
| Gender | Male | Gender Position | 442 of 8666 | Category | M40 | Category Position | 87 of 1790 |
| 10K | 00:40:58 | Stage Position | 261 |
| Half | 01:27:18 | Stage Position | 292 |
| 20Mile | 02:15:40 | Stage Position | 357 |
| Gun Time | 03:03:28 | Overall Position | 455 |
| Chip Time | 03:03:27 | Chip Position | 459 |