| Event | 2012 Dublin - Marathon |
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| Name | Mary Grehan | Club | Race Number | 14432 | Date | 29/10/2012 | |
| Gender | Female | Gender Position | 2086 of 3598 | Category | F40 | Category Position | 401 of 653 |
| to 10K | 01:04:34 | Stage Position | 10063 |
| 10K to Half | 01:11:47 | Stage Position | 9890 |
| Half to 20Mile | 01:16:53 | Stage Position | 9404 |
| Gun Time | 04:37:19 | Overall Position | 9097 |
| Chip Time | 04:36:24 | Chip Position | 9035 |