| Event | 2017 SSE Airtricity Dublin - Marathon |
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| Name | Niamh Grehan | Club | Race Number | 9455 | Date | 29/10/2017 | |
| Gender | Female | Gender Position | 3838 of 5198 | Category | F35 | Category Position | 796 of 1000 |
| Team | BIG RING TRI CLUB | ||||||
| 10K | 01:01:22 | Stage Position | 11287 |
| Halfway | 02:14:17 | Stage Position | 12244 |
| 30K | 03:22:48 | Stage Position | 12936 |
| Gun Time | 05:02:19 | Overall Position | 13303 |
| Chip Time | 04:59:09 | Chip Position | 13152 |