| Event | 2018 Bon Secours GLR - Marathon |
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| Name | Grainne Duffy | Club | Race Number | 587 | Date | 06/05/2018 | |
| Gender | Female | Gender Position | 32 of 174 | Category | F45+ | Category Position | 7 of 39 |
| 10k | 00:53:32 | Stage Position | 336 |
| 20k | 01:46:12 | Stage Position | 322 |
| Half | 01:52:12 | Stage Position | 320 |
| 14.5M | 02:05:57 | Stage Position | 336 |
| 30k | 02:42:19 | Stage Position | 314 |
| 23.5M | 03:30:57 | Stage Position | 287 |
| 40k | 03:41:14 | Stage Position | 261 |
| Gun Time | 03:54:24 | Overall Position | 287 |
| Chip Time | 03:53:47 | Chip Position | 267 |