| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Leonard O' Brennan | Club | Race Number | 5192 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 2608 of 8666 | Category | M35 | Category Position | 722 of 2039 |
| 10K | 00:48:24 | Stage Position | 2169 |
| Half | 01:42:24 | Stage Position | 2179 |
| 20Mile | 02:41:34 | Stage Position | 2743 |
| Gun Time | 03:41:01 | Overall Position | 2876 |
| Chip Time | 03:39:28 | Chip Position | 2869 |