| Event | 2013 Dublin - Half Marathon |
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| Name | William O' Brien | Club | na | Race Number | 7900 | Date | 21/09/2013 |
| Gender | Male | Gender Position | 744 of 3399 | Category | MS | Category Position | 264 of 1230 |
| Gun Time | 01:40:04 | Overall Position | 801 |
| Chip Time | 01:39:44 | Chip Position | 879 |