| Event | 2012 Dublin - Marathon |
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| Name | John Duff | Club | Race Number | 2000 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 1006 of 8779 | Category | MS | Category Position | 381 of 3002 |
| to 10K | 00:41:40 | Stage Position | 335 |
| 10K to Half | 00:46:31 | Stage Position | 336 |
| Half to 20Mile | 00:49:12 | Stage Position | 677 |
| Gun Time | 03:15:23 | Overall Position | 1054 |
| Chip Time | 03:15:03 | Chip Position | 1051 |