| Event | 2013 Airtricity Dublin - Marathon |
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| Name | P. J. O' Brien | Club | Race Number | 3452 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 3700 of 8666 | Category | M55 | Category Position | 72 of 292 |
| 10K | 00:49:35 | Stage Position | 2953 |
| Half | 01:45:02 | Stage Position | 2968 |
| 20Mile | 02:47:49 | Stage Position | 3582 |
| Gun Time | 03:52:23 | Overall Position | 4190 |
| Chip Time | 03:50:58 | Chip Position | 4204 |