| Event | 2013 Airtricity Dublin - Marathon |
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| Name | David O' Hara | Club | Raheny Shamrock A.C. | Race Number | 4307 | Date | 28/10/2013 |
| Gender | Male | Gender Position | 535 of 8666 | Category | M45 | Category Position | 56 of 1107 |
| 10K | 00:44:24 | Stage Position | 851 |
| Half | 01:33:54 | Stage Position | 890 |
| 20Mile | 02:22:54 | Stage Position | 743 |
| Gun Time | 03:07:46 | Overall Position | 553 |
| Chip Time | 03:07:26 | Chip Position | 551 |