| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Derek O' Brien | Club | Race Number | 1444 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 4712 of 8666 | Category | M35 | Category Position | 1260 of 2039 |
| 10K | 00:51:20 | Stage Position | 3715 |
| Half | 01:49:44 | Stage Position | 3949 |
| 20Mile | 02:55:21 | Stage Position | 4862 |
| Gun Time | 04:01:48 | Overall Position | 5543 |
| Chip Time | 03:59:35 | Chip Position | 5465 |