| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Michael O' Brien | Club | Blackrock A.C. Dublin | Race Number | 8373 | Date | 28/10/2013 |
| Gender | Male | Gender Position | 4138 of 8666 | Category | M40 | Category Position | 894 of 1790 |
| 10K | 00:54:17 | Stage Position | 5252 |
| Half | 01:54:04 | Stage Position | 5152 |
| 20Mile | 02:56:22 | Stage Position | 5024 |
| Gun Time | 03:56:50 | Overall Position | 4765 |
| Chip Time | 03:55:43 | Chip Position | 4789 |