| Event | 2012 Dublin - Marathon |
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| Name | David O' Callaghan | Club | Race Number | 5764 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 2788 of 8779 | Category | MS | Category Position | 1000 of 3002 |
| to 10K | 00:49:33 | Stage Position | 2643 |
| 10K to Half | 00:54:57 | Stage Position | 2868 |
| Half to 20Mile | 00:56:29 | Stage Position | 2735 |
| Gun Time | 03:40:37 | Overall Position | 3062 |
| Chip Time | 03:39:33 | Chip Position | 3017 |