| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Rob O' Brien | Club | Donadea Running Club | Race Number | 2496 | Date | 28/10/2013 |
| Gender | Male | Gender Position | 851 of 8666 | Category | MS | Category Position | 280 of 2562 |
| 10K | 00:46:36 | Stage Position | 1436 |
| Half | 01:37:16 | Stage Position | 1302 |
| 20Mile | 02:27:36 | Stage Position | 1075 |
| Gun Time | 03:15:06 | Overall Position | 884 |
| Chip Time | 03:14:29 | Chip Position | 880 |