| Event | 2012 Dublin - Marathon |
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| Name | Donnacha Brosnan | Club | Race Number | 2941 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 1763 of 8779 | Category | M50 | Category Position | 66 of 513 |
| to 10K | 00:48:48 | Stage Position | 2104 |
| 10K to Half | 00:53:37 | Stage Position | 2083 |
| Half to 20Mile | 00:54:17 | Stage Position | 1927 |
| Gun Time | 03:27:58 | Overall Position | 1885 |
| Chip Time | 03:27:24 | Chip Position | 1893 |