| Event | 2015 SSE Airtricity Dublin - Marathon |
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| Name | Dennis Doonan | Club | Mohill A.C. | Race Number | 2303 | Date | 26/10/2015 |
| Gender | Male | Gender Position | 1785 of 8910 | Category | MS | Category Position | 494 of 2274 |
| 10K | 00:49:02 | Stage Position | 2227 |
| Halfway | 01:43:16 | Stage Position | 2259 |
| 30K | 02:27:28 | Stage Position | 2069 |
| Gun Time | 03:29:44 | Overall Position | 1929 |
| Chip Time | 03:28:11 | Chip Position | 1839 |