| Event | 2012 Dublin - Marathon |
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| Name | Mark Breen | Club | Galway Triathlon Club | Race Number | 2031 | Date | 29/10/2012 |
| Gender | Male | Gender Position | 2351 of 8779 | Category | MS | Category Position | 835 of 3002 |
| to 10K | 00:50:28 | Stage Position | 3213 |
| 10K to Half | 00:56:01 | Stage Position | 3329 |
| Half to 20Mile | 00:56:36 | Stage Position | 2772 |
| Gun Time | 03:34:48 | Overall Position | 2541 |
| Chip Time | 03:33:11 | Chip Position | 2471 |