-->
ultrasignup.com

Sourdough Snowshoe Race

calendar_today 06 Feb, 2027

directions_run Running

Sourdough Snowshoe Race

About the Event

Sourdough Snowshoe Race

The race is intended to be a difficult yet fun donation-based backcountry event that tours the winter wonderland surrounding the Brainard Lake area. Given the ever-changing trail conditions during our Colorado winters, keep an eye out for emails close to the race in the event of a large storm that necessitates any event changes. Snowshoes will be required for this race. All racers are required to carry 20 ounces of liquid and 600 calories of nutrition. Racers must wear or carry their snowshoes for the entirety of the race regardless of the snowpack! We will be doing bib pick-up, check-in, and race day registration at the South Sourdough Trailhead (near the University of Colorado Mountain Research Station off the Peak to Peak Highway CO 72 on County Road 116). Please arrive by 8:00 to pick up bib and check-in. Carpool is encouraged. Ski traffic is RAGING once again so plan your commute appropriately. Race begins at 8:30 am Racers begin from the South Sourdough Trailhead parking lot (start line) head north on the trail to Brainard Lake Road. There, the 18K racers will turn around at Brainard Lake Road and return to the South Sourdough Trailhead (finish line). The 30K racers will continue across Brainard Lake Road following the Sourdough Trail loop and returning back to Brainard Lake Road and then on to the South Sourdough Trailhead (finish line). Note: if you are running the 30K, the cutoff to Brainard Lake Rd is 11:30 PM. If you reach there after 11:30 PM please turn around with the 18K runners. Please make sure that if you are downgrading that you are checking in with the aid station at the Brainard Lake turnaround so that we know where you are. You will not be listed as a DNF, we will just list your finish as an 18k. The aid station will have hot and sweet Sport Tea, water, granola bars, bacon, and some other goodies. More importantly, we will have a Solo Stove and chairs and blankets for runners who want to warm up. There is (at best) spotty cell phone service in Nederland. Please put the address to the South Sourdough Trailhead into your direction-finder before you leave in the morning so you will know where to find us. This year we will also be hosting a small finish line "hangout" with a warming tent, propane fire pit, and hot cider or cocoa. LETS GOOOOO!!! For any other questions, please email the Race Directors at: [email protected]

Races Offered

18K

Feb 06, 2027

straighten

Distance — 18K

terrain

Type — Running

timer

08:30

30K

Feb 06, 2027

straighten

Distance — 30K

terrain

Type — Running

timer

08:30

Weather History

These values represent the 3-year monthly averages for February in Nederland.

thermostat Temperature
-10.5° / -0.5°
wb_sunny Feels like
-17.7° / -6.1°
light_mode Avg sunshine hours
8h 29m
water_drop Avg rainfall
1.6 mm
ac_unit Avg snowfall
1.1 cm
air Avg wind speed
17.7 km/h (Gentle breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (3.0)
humidity_mid Humidity
59.7%
wb_twilight Sunrise
07:54
nightlight Sunset
18:36

About Nederland

Learn more about the host city, Nederland.

Scenic view of

Nederland is a statutory town located near Barker Meadow Reservoir in the foothills of southwest Boulder County, Colorado, United States. As of the 2020 United States census it had a population of 1,471.

Read more launch

Hotels & Places to Stay

Race Results

All-time top performances and historical records for Sourdough Snowshoe Race.

Place Name Year Time
🥇 Patrick Mcglade '26 3:48:00
🥈 Andrew Rexroad '26 4:27:00
🥉 Kevin Doty '26 4:34:00
4 Andrew Poland '26 4:52:00
5 Mattew Delarosa '26 5:02:00

Runner Reviews

Read what other athletes have to say about their experience at the Sourdough Snowshoe Race.

No reviews yet

Be the first to share your experience with the community!

Suggest an edit

Spotted an error or missing detail about the Sourdough Snowshoe Race? Help us improve.

Nearby Races

Explore other exciting events happening in this same region.

CYCLO-X Valmont

CYCLO-X Valmont

location_on Boulder, Colorado, US

calendar_today Sep 26, 2026

Running for Children's Rights to Both Parents - 9 of 50 Half Marathons in 50 States - Colorado

Running for Children's Rights to Both Parents - 9…

location_on Boulder, Colorado, US

calendar_today Sep 27, 2026

Girls on the Run Rockies Boulderthon SoleMates 2026

Girls on the Run Rockies Boulderthon SoleMates 20…

location_on Boulder, Colorado, US

calendar_today Sep 27, 2026

Recommended for You

Hand-picked events we think you’ll love.

2026 Oktoberfest 5k

Sep 26, 2026

2026 Oktoberfest 5k

The Oktoberfest 5K is back again this fall offering an active start to a festive weekend. Lace up your running shoes an…

Read more
2026 Center of the Nation Series - Day 1 (WY)

Sep 28, 2026

2026 Center of the Nation Series - Day 1 (WY)

World's Best Marathon & Half Series! No Time Limits Great Food Award-Winning Medals Loony Community! We RUN this countr…

Read more
2026 Center of the Nation Series - Day 2 (CO)

Sep 29, 2026

2026 Center of the Nation Series - Day 2 (CO)

World's Best Marathon & Half Series! No Time Limits Great Food Award-Winning Medals Loony Community! We RUN this countr…

Read more
2026 Platte Valley Companies Monument Marathon

Sep 26, 2026

2026 Platte Valley Companies Monument Marathon

Welcome to the most beautiful race in Nebraska! Runners from all over the country have described us as the friendliest,…

Read more

Get race deals & updates

Subscribe to our newsletter for curated race picks and discounts.