| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Des O' Brien | Club | Crusaders AC | Race Number | 3251 | Date | 28/10/2013 |
| Gender | Male | Gender Position | 1887 of 8666 | Category | M35 | Category Position | 534 of 2039 |
| 10K | 00:49:57 | Stage Position | 3131 |
| Half | 01:44:58 | Stage Position | 2947 |
| 20Mile | 02:39:44 | Stage Position | 2485 |
| Gun Time | 03:31:14 | Overall Position | 2033 |
| Chip Time | 03:30:00 | Chip Position | 2018 |