Upcoming UltraRunning Events in Colorado
| Date | Event | City | Distances |
|---|---|---|---|
| 03/06/20 | Running Up for Air Staunton Rocks | Pine | 6 Hours, 12 Hours, 24 Hours |
| 04/04/20 | Runs With Scissors Races | Brighton | 50 KM |
| 04/11/20 | Rattler Trail Race | Colorado Springs | 50 KM |
| 04/18/20 | Desert Rats Trail Running Festival | Fruita | 50 KM |
| 04/25/20 | Falcon 50 | Colorado Springs | 50 Miles |
| 04/25/20 | 24 Hours of Palmer Lake Fun Run | Palmer Lake | 24 Hours |
| 04/25/20 | Cheyenne Mountain Trail Race | Pine | 50 KM |
| 05/02/20 | Cheyenne Mountain Ultra 10x5k | Colorado Springs | 50 KM |
| 05/02/20 | Collegiate Peaks | Buena Vista | 50 Miles |
| 05/09/20 | Quad Rock 50 | Fort Collins | 50 Miles |
| 05/09/20 | Tommyknocker 12-Hour & Mine Shaft Half | Golden | 12 Hours |
| 05/09/20 | Greenland Trail Races | Larkspur | 50 KM |
| 05/16/20 | Sky Pilots Ouray Backyard Ultra | Ouray | Variable Hours |
| 05/30/20 | Valkyrie Trail Race | Colorado Springs | 50 KM |
| 05/30/20 | Golden Gate Dirty 30 | Black Hawk | 50 KM |
| 05/30/20 | Run the Ranch | Loveland | 6 Hours |
| 06/06/20 | South Park Trail Marathon & Half | Fairplay | 28 Miles |
| 06/06/20 | North Fork 50 Mile/50K | Pine | 50 KM, 50 Miles |
| 06/06/20 | Lincoln Mountain Trail Run | Larkspur | 6 Hours |
| 06/13/20 | Happy Camper Fun Run | Westminster | 50 Miles, 100 Miles |
| 06/14/20 | Desert Rats Kokopelli Stage Race | Fruita | 150 Miles |
| 06/27/20 | John Cappis 50K Fat Ass | Silverton | 50 KM |
| 06/27/20 | San Juan Solstice | Lake City | 50 Miles |
| 07/11/20 | Silver Rush 50 | Leadville | 50 Miles |
| 07/11/20 | Silverheels 100 | Fairplay | 100 Miles |
| 07/12/20 | Silverton Alpine | Silverton | 50 KM |
| 07/12/20 | Last Call 50 Miler | Fairplay | 53.5 Miles |
| 07/17/20 | Hardrock 100 Endurance Run | Silverton | 100 Miles |
| 07/18/20 | Kickers For Kids Fun Run | Palmer Lake | 50 KM, 50 Miles, 100 Miles |
| 07/24/20 | Ouray 100 Mile Endurance Run | Ouray | 50 Miles, 100 Miles |
| 07/25/20 | Never Summer 100K | Gould | 100 KM |
| 07/25/20 | Pikes Peak Ultra | Colorado Springs | 50 KM, 50 Miles |
| 07/25/20 | Grand Mesa Ultras | Grand Mesa | 55 KM, 50 Miles |
| 07/31/20 | High Lonesome 100 | Salida | 100 Miles |
| 07/31/20 | Chase the Moon Endurance Run | Highlands Ranch | 12 Hours |
| 08/01/20 | Sheep Mountain Endurance Run | Fairplay | 50 KM, 50 Miles |
| 08/01/20 | Dinosaur100 Trail Race | Craig | 100 Miles |
| 08/01/20 | Silverton Ultra Dirty | Silverton | 60 KM, 100 KM |
| 08/01/20 | Power of Four | Aspen | 50 KM |
| 08/14/20 | HighFive100 | Lake City | 100 Miles |
| 08/22/20 | Continental Divide Trail Run | Steamboat Springs | 50 KM |
| 08/22/20 | Telluride Mountain Run | Telluride | 38 Miles |
| 08/22/20 | Leadville Trail | Leadville | 100 Miles |
| 08/28/20 | Divide 100k | Georgetown | 100 KM |
| 08/29/20 | Bear Creek Fun Run | Colorado Springs | 5 Hours, 10 Hours |
| 09/05/20 | The North Face Grand Traverse Mountain Run | Crested Butte | 40 Miles |
| 09/06/20 | Estes Epic | Estes Park | 55 KM |
| 09/11/20 | American Heroes Run | Longmont | 24 Hours, 100 Miles |
| 09/12/20 | Fox Run Fun Run | Colorado Springs | 50 Miles |
| 09/12/20 | Devil on the Divide 50K | Empire | 50 KM |
| 09/18/20 | Run Rabbit Run | Steamboat Springs | 50 Miles, 100 Miles |
| 09/19/20 | Mountain RATS | Eagle | 50 KM |
| 09/19/20 | Snow Mountain Ranch Trail Running Festival | Granby | 50 KM |
| 09/19/20 | Sangre de Cristo Ultras | Westcliffe | 50 KM, 50 Miles, 100 KM, 100 Miles, 200 Miles |
| 09/26/20 | The Bear Chase | Lakewood | 50 KM, 50 Miles, 100 KM |
| 10/03/20 | Crested Butte Ultra | Crested Butte | 55 KM, 53 Miles, 100 KM |
| 10/03/20 | Castlewood Canyon Fun Run | Franktown | 6 Hours, 10 Hours |
| 10/03/20 | Castle Rock Trail Festival | Castle Rock | 50 KM |
| 10/17/20 | Sage Burner 50k | Gunnison | 50 KM |
| 10/17/20 | Indian Creek Fifties | Sedalia | 55 KM, 50 Miles |
| 12/12/20 | Sawmill 17 & 50K+ | Golden | 50 KM |
| 02/06/21 | Stories Ultra | Colorado Springs | 6 Hours, 15 Hours, 30 Hours |
Past UltraRunning Events in Colorado
| Date | Event | City | Distances |
|---|---|---|---|
| 08/09/19 | Pagosa Fun 10 Hour Ultra Run | Pagosa Springs | 10 Hours |
| 03/02/19 | Frozen Foot 50 Ultra Race | Pagosa Springs | 50 KM |
| 08/25/18 | Devil Mountain | Pagosa Springs | 50 KM, 50 Miles |
| 08/11/18 | Box Canyon 40 | Telluride | 55 KM, 40 Miles, 55 Miles |
| 07/14/18 | Under Armour Mountain Running Series - Copper Mountain | Copper Mountain | 50 KM |
| 07/06/18 | Steep Camp (Silverton 1000) | Silverton | 6 Hours, 12 Hours, 24 Hours, 48 Hours, 72 Hours, 144 Hours, 100 Miles |
| 05/18/18 | The Divide 135 Ultra | Walden | 135 Miles |
| 10/22/17 | Bobcat Trail Races | Colorado Springs | 50 KM |
| 09/02/17 | Hideaway Hundred | Winter Park | 50 KM, 50 Miles, 100 KM, 100 Miles |
| 07/18/17 | Colorado 200 Mile Endurance Run | Almont | 200 Miles |
| 05/07/17 | Cimarron Endurance Run | Cimarron | 50 KM |
| 04/29/17 | The Chatfield Ultra Race - C.U.R.E ultras | Littleton | 50 KM, 50 Miles, 100 KM |
| 10/11/14 | 24 Hours of Boulder | Boulder | 6 Hours, 12 Hours, 24 Hours, 50 KM, 100 KM, 100 Miles |
| 09/06/14 | Ultra Race of Champions (UROC) - CO | Vail | 50 KM, 100 KM |
| 07/26/14 | Mt. Werner Classic | Steamboat Springs | 50 KM |
| 07/04/14 | Mountain Challenge Series # 3 - July | Silverton | 48 Hours, 240 Hours |
| 06/14/14 | Gunnison 100k Endurance Run | Gunnison | 100 KM |
| 06/13/14 | Mountain Challenge Series: June | Silverton | 24 Hours, 48 Hours, 72 Hours, 168 Hours, 240 Hours |
| 06/29/13 | Silverton 6/12/24 Hour Mountain Runs | Silverton | 6 Hours, 12 Hours, 24 Hours |
| 06/01/13 | Run for Aurora | Roxborough | 50 KM, 50 Miles |
| 06/21/11 | Gemini Adventures | Grand Junction | 148 Miles |
| 10/17/09 | Boulder 12-Hour | Boulder | 12 Hours |
| 10/03/09 | Blue Sky Trail Marathon | Fort Collins | 50 KM |
| 07/26/08 | High Mountain | Leadville | 50 KM |
| 10/09/04 | Telegraph Trail | Durango | 50 KM |
| 01/17/04 | Frozen Ass Trail 30 Mile | Littleton | 30 Miles |
| 05/25/02 | Black Canyon | Montrose | 50 KM |
| 06/16/01 | Colorado Trail Pearl | Winter Park | 24 Hours |
| 04/07/01 | Mile High Metric Challenge | Littleton | 50 KM |
| 08/05/88 | Vail Valley 50 Mile | Vail | 50 Miles |
| 04/16/88 | Alfred E. Packer 50 Mile Run | Littleton | 50 Miles |
