| Rebecca Blumberg's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Blue Sky Marathon & Half 2024 (Trail Half Marathon) | Colorado, US | 42 | Saturday, October 19, 2024 | 02:53:25.00 |
| Blue Sky Marathon & Half 2023 (Trail Half Marathon) | Colorado, US | 41 | Saturday, October 21, 2023 | 03:09:30.00 |
| Staunton Rocks! Marathon & Half (Half Marathon) | Colorado, US | 39 | Saturday, August 28, 2021 | 03:02:55.00 |
| Quad Rock 2021 (Quad Rock 25) | Colorado, US | 39 | Saturday, May 8, 2021 | 07:09:57.00 |
| Blue Sky Marathon 2020 (Blue Sky) | Colorado, US | 38 | Saturday, November 14, 2020 | 06:42:38.00 |