| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Mark O' Duffy | Club | Race Number | 5039 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 223 of 8666 | Category | MS | Category Position | 95 of 2562 |
| 10K | 00:42:29 | Stage Position | 655 |
| Half | 01:29:45 | Stage Position | 547 |
| 20Mile | 02:15:24 | Stage Position | 337 |
| Gun Time | 02:56:52 | Overall Position | 231 |
| Chip Time | 02:56:46 | Chip Position | 233 |