| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Billy Byrne | Club | Race Number | 568 | Date | 28/10/2013 | |
| Gender | Male | Gender Position | 1914 of 8666 | Category | M50 | Category Position | 107 of 583 |
| 10K | 00:49:25 | Stage Position | 2809 |
| Half | 01:44:32 | Stage Position | 2696 |
| 20Mile | 02:39:08 | Stage Position | 2289 |
| Gun Time | 03:31:36 | Overall Position | 2064 |
| Chip Time | 03:29:53 | Chip Position | 2007 |