| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Gerard Grehan | Club | Race Number | 2919 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 8544 of 8666 | Category | M50 | Category Position | 571 of 583 |
| 10K | 01:09:54 | Stage Position | 11412 |
| Half | 02:38:03 | Stage Position | 11638 |
| 20Mile | 04:31:59 | Stage Position | 11850 |
| Gun Time | 06:31:34 | Overall Position | 12059 |
| Chip Time | 06:28:49 | Chip Position | 11992 |