Once you've done the rest, Take the Challenge

July 25th, 2026

100 Miles – 3  Cat 1 Climbs – 11,164′ Vertical Gain

The Colorado Park 2 Park Challenge is a single-day Gran Fondo from Denver’s City Park to Winter Park Resort, climbing three of Colorado’s toughest mountains. Riders are challenged to earn a coveted gold, silver or bronze custom trophy based on your finishing time to the top of Berthoud Pass. 

Early Registration opens January 1, 2026

Standard Registration opens January 15, 2026

Reserve an Early Registration at BikeReg.com

THANKS TO OUR GREAT PARTNERS!

   Hammer - Red and White          Rolf Prima        Velofix Black  

             Hammer Nutrition                                        Rolf Prima                                                  Velofix             

              BMW                     connor_logo1                   Pactimo                   

    BMW of Denver Downtown                           Connor Cycles                                      Pactimo                                                                   

Route

Enjoy riding the beautiful and challenging route from Denver, CO’s City Park to Winter Park, CO. This challenging route covers 100 Miles, 3 Category 1 Climbs and has 11,164′ Vertical Gain. This is not for the heartiest of souls. … More Route