In the even years the Rattlesnake Ramble course goes up the Eldorado Trail first and then out the Fowler Trail.
| Name | Date and Time | |
|---|---|---|
| 2024 Rattlesnake Ramble (Full Course) | Saturday, September 21, 2024 7:47AM (MDT) | 153 entrants |
| 2022 Rattlesnake Ramble (Full Course) | Saturday, September 17, 2022 7:45AM (MDT) | 114 entrants |
| 2020 Rattlesnake Ramble (Full Course) | Saturday, September 12, 2020 7:45AM (MDT) | 95 entrants |
| 2018 Rattlesnake Ramble (Full Course) | Saturday, September 15, 2018 7:45AM (MDT) | 118 entrants |
| 2016 Rattlesnake Ramble (Full Course) | Saturday, September 10, 2016 8:00AM (MDT) | 105 entrants |
| 2014 Rattlesnake Ramble (Full Course) | Saturday, September 13, 2014 8:00AM (MDT) | 93 entrants |
| 2012 Rattlesnake Ramble (Full Course) | Saturday, September 15, 2012 8:00AM (MDT) | 104 entrants |
| 2010 Rattlesnake Ramble (Full Course) | Saturday, September 18, 2010 8:00AM (MDT) | 86 entrants |
| 2008 Rattlesnake Ramble (Full Course) | Sunday, September 21, 2008 8:00AM (MDT) | 62 entrants |
| 2006 Rattlesnake Ramble (Full Course) | Saturday, September 16, 2006 8:00AM (MDT) | 58 entrants |