| Event | 2014 SSE Airtricity Dublin - Marathon |
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| Name | Grainne Costello | Club | Race Number | 14462 | Date | 27/10/2014 | |
| Gender | Female | Gender Position | 3116 of 3822 | Category | F50 | Category Position | 157 of 245 |
| 10K | 01:09:50 | Stage Position | 10107 |
| Half | 02:35:21 | Stage Position | 11645 |
| 30K | 03:49:57 | Stage Position | 11481 |
| Gun Time | 05:29:21 | Overall Position | 11177 |
| Chip Time | 05:28:53 | Chip Position | 11155 |