| Robert Kubicek's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2021 Golden Gate Dirty 30 (50K) | Nebraska, US | 38 | Saturday, June 12, 2021 | Not yet started |
| 2018 Silverton Ultra Marathon (55K) | Nebraska, US | 35 | Saturday, August 11, 2018 | 08:33:21.00 |
| Robert Kubicek's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2021 Golden Gate Dirty 30 (50K) | Nebraska, US | 38 | Saturday, June 12, 2021 | Not yet started |
| 2018 Silverton Ultra Marathon (55K) | Nebraska, US | 35 | Saturday, August 11, 2018 | 08:33:21.00 |