| Event | 2012 Dublin - Marathon |
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| Name | Don O' Callaghan | Club | Charity entry | Race Number | 17821 | Date | 29/10/2012 |
| Gender | Male | Gender Position | 2208 of 8779 | Category | M50 | Category Position | 93 of 513 |
| to 10K | 00:49:05 | Stage Position | 2244 |
| 10K to Half | 00:53:55 | Stage Position | 2182 |
| Half to 20Mile | 00:54:28 | Stage Position | 1980 |
| Gun Time | 03:32:21 | Overall Position | 2371 |
| Chip Time | 03:30:55 | Chip Position | 2322 |