| Event | 2013 Airtricity Dublin - Marathon |
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| Name | John O' Brien | Club | Race Number | 16011 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 8038 of 8666 | Category | MS | Category Position | 2404 of 2562 |
| 10K | 01:15:45 | Stage Position | 11832 |
| Half | 02:37:36 | Stage Position | 11627 |
| 20Mile | 04:00:20 | Stage Position | 11226 |
| Gun Time | 05:16:16 | Overall Position | 10970 |
| Chip Time | 05:16:10 | Chip Position | 10958 |