| Event | 2012 Dublin - Marathon |
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| Name | Barry Brennan | Club | Race Number | 4143 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 595 of 8779 | Category | MS | Category Position | 248 of 3002 |
| to 10K | 00:38:28 | Stage Position | 88 |
| 10K to Half | 00:47:10 | Stage Position | 438 |
| Half to 20Mile | 00:51:07 | Stage Position | 1085 |
| Gun Time | 03:06:57 | Overall Position | 627 |
| Chip Time | 03:06:57 | Chip Position | 625 |