| Event | 2013 Airtricity Dublin - Marathon |
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| Name | John O' Leary | Club | Portmarnock AC | Race Number | 4235 | Date | 28/10/2013 |
| Gender | Male | Gender Position | 3298 of 8666 | Category | M50 | Category Position | 197 of 583 |
| 10K | 00:54:27 | Stage Position | 5376 |
| Half | 01:54:25 | Stage Position | 5274 |
| 20Mile | 02:54:13 | Stage Position | 4628 |
| Gun Time | 03:48:32 | Overall Position | 3699 |
| Chip Time | 03:48:11 | Chip Position | 3817 |