| Event | 2012 Dublin - Marathon |
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| Name | Ian Dempsey | Club | Race Number | 12926 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 2843 of 8779 | Category | MS | Category Position | 1021 of 3002 |
| to 10K | 00:54:11 | Stage Position | 5164 |
| 10K to Half | 00:57:51 | Stage Position | 3979 |
| Half to 20Mile | 00:56:23 | Stage Position | 2708 |
| Gun Time | 03:41:06 | Overall Position | 3124 |
| Chip Time | 03:39:29 | Chip Position | 3009 |