| Event | 2012 Dublin - Marathon |
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| Name | Richard O' Brien | Club | Race Number | 3479 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 1543 of 8779 | Category | M40 | Category Position | 304 of 1608 |
| to 10K | 00:48:40 | Stage Position | 2056 |
| 10K to Half | 00:53:02 | Stage Position | 1931 |
| Half to 20Mile | 00:54:05 | Stage Position | 1868 |
| Gun Time | 03:24:56 | Overall Position | 1639 |
| Chip Time | 03:24:17 | Chip Position | 1630 |