| Event | 2012 Dublin - Marathon |
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| Name | John Sheahan | Club | Acuhealthcare | Race Number | 8314 | Date | 29/10/2012 |
| Gender | Male | Gender Position | 2324 of 8779 | Category | MS | Category Position | 827 of 3002 |
| to 10K | 00:49:46 | Stage Position | 2848 |
| 10K to Half | 00:54:56 | Stage Position | 2854 |
| Half to 20Mile | 00:55:11 | Stage Position | 2330 |
| Gun Time | 03:34:15 | Overall Position | 2510 |
| Chip Time | 03:33:03 | Chip Position | 2465 |