| Chris Siron's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Blue Sky Marathon & Half 2023 (Trail Marathon) | Colorado, US | 39 | Saturday, October 21, 2023 | 04:32:42.00 |
| 2012 Rattlesnake Ramble (Full Course) | 28 | Saturday, September 15, 2012 | 00:34:38.00 |
| Chris Siron's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Blue Sky Marathon & Half 2023 (Trail Marathon) | Colorado, US | 39 | Saturday, October 21, 2023 | 04:32:42.00 |
| 2012 Rattlesnake Ramble (Full Course) | 28 | Saturday, September 15, 2012 | 00:34:38.00 |