| Jonathan Engelstad's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2024 (Quad Rock 50) | Colorado, US | 52 | Saturday, May 11, 2024 | Not yet started |
| Never Summer 100k (2023) | New Mexico, US | 51 | Saturday, July 29, 2023 | Not yet started |
| Jonathan Engelstad's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2024 (Quad Rock 50) | Colorado, US | 52 | Saturday, May 11, 2024 | Not yet started |
| Never Summer 100k (2023) | New Mexico, US | 51 | Saturday, July 29, 2023 | Not yet started |