| Maggie Shafer's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Red Feather Trail Jamboree 2022 (Half Marathon) | Colorado, US | 35 | Saturday, September 17, 2022 | 02:06:13.00 |
| Staunton Rocks! Marathon & Half (Marathon) | Colorado, US | 34 | Saturday, August 28, 2021 | 04:52:55.00 |
| Quad Rock (2019) (Quad Rock 25) | Colorado, US | 32 | Saturday, May 11, 2019 | 05:09:46.00 |