| Event | 2012 Dublin - Marathon |
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| Name | Declan Costello | Club | Central Bank of Ireland | Race Number | 3012 | Date | 29/10/2012 |
| Gender | Male | Gender Position | 4103 of 8779 | Category | MS | Category Position | 1449 of 3002 |
| to 10K | 00:48:43 | Stage Position | 2068 |
| 10K to Half | 00:58:12 | Stage Position | 4133 |
| Half to 20Mile | 01:09:11 | Stage Position | 7627 |
| Gun Time | 03:53:59 | Overall Position | 4709 |
| Chip Time | 03:53:19 | Chip Position | 4733 |