| Event | 2012 Dublin - Marathon |
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| Name | Micheal O' Brien | Club | Race Number | 3754 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 3069 of 8779 | Category | MS | Category Position | 1102 of 3002 |
| to 10K | 00:50:04 | Stage Position | 3040 |
| 10K to Half | 00:56:10 | Stage Position | 3385 |
| Half to 20Mile | 00:58:37 | Stage Position | 3553 |
| Gun Time | 03:43:37 | Overall Position | 3401 |
| Chip Time | 03:41:53 | Chip Position | 3271 |