| Event | 2012 Dublin - Marathon |
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| Name | Des Beirne | Club | Gardai | Race Number | 17686 | Date | 29/10/2012 |
| Gender | Male | Gender Position | 3523 of 8779 | Category | M35 | Category Position | 889 of 2079 |
| to 10K | 00:50:35 | Stage Position | 3265 |
| 10K to Half | 00:56:24 | Stage Position | 3465 |
| Half to 20Mile | 01:01:04 | Stage Position | 4619 |
| Gun Time | 03:48:00 | Overall Position | 3963 |
| Chip Time | 03:47:57 | Chip Position | 4039 |