| Event | 2013 Airtricity Dublin - Marathon |
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| Name | David Brennan | Club | Race Number | 5313 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 4738 of 8666 | Category | MS | Category Position | 1410 of 2562 |
| 10K | 00:51:47 | Stage Position | 4012 |
| Half | 01:50:57 | Stage Position | 4370 |
| 20Mile | 02:55:46 | Stage Position | 4930 |
| Gun Time | 04:02:04 | Overall Position | 5581 |
| Chip Time | 04:00:02 | Chip Position | 5514 |