| Event | 2012 Dublin - Marathon |
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| Name | Barry O' Brien | Club | Race Number | 9488 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 3243 of 8779 | Category | M35 | Category Position | 817 of 2079 |
| to 10K | 00:53:13 | Stage Position | 4643 |
| 10K to Half | 00:59:01 | Stage Position | 4673 |
| Half to 20Mile | 00:58:06 | Stage Position | 3266 |
| Gun Time | 03:44:42 | Overall Position | 3612 |
| Chip Time | 03:44:29 | Chip Position | 3675 |