| Jon Marquez's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2019 Golden Gate Dirty 30 (50K) | Colorado, US | 45 | Saturday, June 1, 2019 | Not yet started |
| 2018 Golden Gate Dirty 30 (12-mile) | 44 | Saturday, June 2, 2018 | 03:38:37.79 |
| Jon Marquez's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2019 Golden Gate Dirty 30 (50K) | Colorado, US | 45 | Saturday, June 1, 2019 | Not yet started |
| 2018 Golden Gate Dirty 30 (12-mile) | 44 | Saturday, June 2, 2018 | 03:38:37.79 |