| Event | 2015 SSE Airtricity Dublin - Marathon |
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| Name | Derek O Brien | Club | Race Number | 4045 | Date | 26/10/2015 | |
| Gender | Male | Gender Position | 844 of 8910 | Category | M50 | Category Position | 54 of 742 |
| 10K | 00:45:01 | Stage Position | 1114 |
| Halfway | 01:34:12 | Stage Position | 1043 |
| 30K | 02:15:01 | Stage Position | 949 |
| Gun Time | 03:14:17 | Overall Position | 886 |
| Chip Time | 03:13:40 | Chip Position | 874 |