Canceled Two Brothers Up-and-Down 5K/10K

Courtney-Ryley-Cooper Park 2350 Colorado Blvd, Idaho Springs, CO, United States

Run your slowest 5K, then turn around and run your fastest at the Two Brothers Up-and-Down 10K on August 28th in Idaho Springs. This race climbs 1,800' in 5K and then turns around and goes back down!

Expo Park XC Runs

Expo Park 10955 E Exposition Ave, Aurora, CO, United States

Old-school cross-country style courses with creek crossings and bale jumps. Youth races 1k - 4k. All-ages 5k. Individuals and teams.

$20

Beware the Bear Trail Races

Bear Creek Lake Park 15600 W Morrison Rd, Lakewood, CO, United States

Run the original Bear Creek Lake Park trail race - the Beware the Bear Trail Races - on October 17th. This trail race consists of a 14.2K or a 5K. Or do them both with the double! There is also a kids 1K.

$30

Postponed Reuter-Hess Trail Run

Reuter Hess Incline 11865 Heirloom Pkwy, Parker, CO, United States

10k, with 600′ of elevation gain, on the trails at the Reuter-Hess Incline and Reservoir, in Parker. After 1/3mi, you climb an incline/challenge hill. The rest of the course is on rolling terrain, a mix of fairly smooth and somewhat rocky. Enjoy great views across the panorama of the front range. Staggered starts (Dipsea style) […]

$35

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