| Event | 2012 Dublin - Marathon |
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| Name | Dermot Mangan | Club | ESB | Race Number | 1020 | Date | 29/10/2012 |
| Gender | Male | Gender Position | 1964 of 8779 | Category | MS | Category Position | 703 of 3002 |
| to 10K | 00:49:30 | Stage Position | 2570 |
| 10K to Half | 00:54:45 | Stage Position | 2637 |
| Half to 20Mile | 00:53:51 | Stage Position | 1791 |
| Gun Time | 03:29:47 | Overall Position | 2107 |
| Chip Time | 03:28:45 | Chip Position | 2081 |