| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Peter Grennan | Club | Race Number | 2787 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 4113 of 8666 | Category | M40 | Category Position | 886 of 1790 |
| 10K | 00:52:10 | Stage Position | 4247 |
| Half | 01:49:01 | Stage Position | 3758 |
| 20Mile | 02:54:53 | Stage Position | 4784 |
| Gun Time | 03:56:35 | Overall Position | 4730 |
| Chip Time | 03:53:39 | Chip Position | 4558 |