Lyons
The Old Man Winter Rally was created to be THE multi-sport winter event. With two bike courses and a one-of-a-kind running course, there is plenty of winter adventure for all runners and cyclists.
Cycling
It is the one and only winter cycling festival that brings Boulder’s best riding to cyclists of all levels. From quiet country roads to scenic mountain lakes, we’ve got the distance and the terrain you’re after.
Event details and registration here