| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Ken O' Brien | Club | Race Number | 3738 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 3705 of 8666 | Category | M35 | Category Position | 995 of 2039 |
| 10K | 00:57:37 | Stage Position | 7449 |
| Half | 01:57:47 | Stage Position | 6194 |
| 20Mile | 02:55:22 | Stage Position | 4865 |
| Gun Time | 03:52:26 | Overall Position | 4197 |
| Chip Time | 03:48:46 | Chip Position | 3903 |