| Event | 2013 Airtricity Dublin - Marathon |
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| Name | Margaret Brennan | Club | Race Number | 7938 | Date | 28/10/2013 | |
| Gender | Female | Gender Position | 1459 of 3684 | Category | F45 | Category Position | 183 of 502 |
| 10K | 00:56:58 | Stage Position | 6933 |
| Half | 01:59:28 | Stage Position | 6665 |
| 20Mile | 03:08:19 | Stage Position | 6975 |
| Gun Time | 04:19:28 | Overall Position | 7341 |
| Chip Time | 04:18:47 | Chip Position | 7372 |