| Event | 2018 SSE Airtricity Dublin - Half Marathon |
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| Name | Derek O Brien | Club | Race Number | 3675 | Date | 22/09/2018 | |
| Gender | Male | Gender Position | 194 of 4015 | Category | M50 | Category Position | 6 of 308 |
| 10M | 01:06:02 | Stage Position | 211 |
| Gun Time | 01:25:19 | Overall Position | 198 |
| Chip Time | 01:25:10 | Chip Position | 203 |