| Peter Krzanowsky's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2020 Rattlesnake Ramble (Full Course) | CO | 42 | Saturday, September 12, 2020 | 00:36:56.00 |
| 2019 Rattlesnake Ramble (Full Course) | CO | 41 | Saturday, September 14, 2019 | 00:36:08.00 |
| Running Up For Air Colorado 2019 (6H) | 41 | Saturday, March 9, 2019 | 03:10:00.00 | |
| 2015 Rattlesnake Ramble (Full Course) | 37 | Saturday, September 12, 2015 | 00:36:11.00 |