| Event | 2012 Dublin - Marathon |
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| Name | Martin O' Brien | Club | Race Number | 3011 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 2841 of 8779 | Category | M35 | Category Position | 706 of 2079 |
| to 10K | 00:48:30 | Stage Position | 2008 |
| 10K to Half | 00:54:41 | Stage Position | 2583 |
| Half to 20Mile | 00:57:19 | Stage Position | 3015 |
| Gun Time | 03:41:06 | Overall Position | 3122 |
| Chip Time | 03:40:12 | Chip Position | 3103 |