| Lacey Knaff's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Staunton Rocks! Marathon & Half 2023 (Half Marathon) | Colorado, US | 34 | Saturday, August 26, 2023 | 03:02:02.00 |
| Staunton Rocks! Marathon & Half (Half Marathon) | Colorado, US | 32 | Saturday, August 28, 2021 | 02:42:22.00 |