| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Tadhg O' Brien | Club | Race Number | 4038 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 1870 of 8666 | Category | M35 | Category Position | 526 of 2039 |
| 10K | 00:49:12 | Stage Position | 2556 |
| Half | 01:44:47 | Stage Position | 2865 |
| 20Mile | 02:39:47 | Stage Position | 2492 |
| Gun Time | 03:31:00 | Overall Position | 2015 |
| Chip Time | 03:29:49 | Chip Position | 2001 |