Ralston Creek Half Marathon & 5k
From Racing Underground
- Date Sun 14th February 2027
- Time 9:00AM MST
- Location Arvada, Colorado
- Price $27.50 - $133.50
- Races 5 races
- Distances Half Marathon, 5km
Event summary
Participants in the half-marathon will have the option of an early start for those who anticipate taking longer than 2 hours and 45 minutes to complete the race. With limited entries available—650 for the half-marathon and 350 for the 5K—be sure to register early to secure your spot! Enjoy a day filled with excitement, camaraderie, and plenty of post-race treats, including hot cocoa and delicious quesadillas fresh off the grill. All finishers will receive a medal, and runners completing the entire Racing Underground Winter Running Series will be eligible for special awards. Don’t miss out on this fantastic winter event—mark your calendar and join us for a memorable day of running and fun at the R
Organiser's Description
Half-Marathon entry is limited to the first 650 registrations. 5K registration is limited to the first 350 entries. Once a distance has filled, we cannot accept any additional entries for that distance.
Your entry fee includes entry into the race, a finisher's medal (for half-marathon runners who complete the course), FREE race photo downloads, fun music, hot cocoa and tasty quesadillas fresh off the grill!!!
Long sleeve adult tech shirts will be included with all half marathon entries. 5k entries will come with a short sleeve t-shirt or an upgrade to a long sleeve tech shirt for $5.
THIS IS ALSO THE FINAL RACE IN THE RACING UNDERGROUND WINTER RUNNING SERIES. THE THREE-RACE SERIES INCLUDES THE STOCKING RUN 5K IN DECEMBER, THE YETI CHASE 5K/10K IN JANUARY, AND THE RALSTON CREEK HALF-MARATHON & 5K IN FEBRUARY. CHOOSE FROM THE 5K-5K-5K SERIES OR THE 5K-10K-HALF MARATHON SERIES.
WINTER RUNNING SERIES
Series Finisher Awards to all runners who finish all three series races, and Overall Awards to the top series finisher in each age category!
DECEMBER 12, 2026: SUPERIOR STOCKING RUN 5K (Superior, Colorado)
JANUARY 24, 2027: YETI CHASE 5K/10K (Lakewood, Colorado)
FEBRUARY 14, 2027: RALSTON CREEK HALF MARATHON & 5K (Arvada, Colorado)
Races
-
Half Marathon
Incl. $4.90 Fee & Select Your Shirt Size
Sun 14th February 2027 (9:00AM MST)
$69.90
-
5k Run
Incl. $2.80 Fee & Select Your Shirt Size
Sun 14th February 2027 (10:00AM MST)
$32.80
-
5k Youth Entry
Incl. $2.50 Fee & Select Your Shirt Size
Sun 14th February 2027 (10:00AM MST)
$27.50
-
5K-5K-5K Winter Run Series
Incl. $6.10 Fee & Select Your Shirt Size
Sun 14th February 2027 (10:00AM MST)
$91.10
Series entry gets you into all three Winter Series events: December 12 - Superior Stocking Run 5k January 24 - Yeti Chase 5k February 11 - Ralston Creek 5k -
5k-10k-Half Winter Run Series
Incl. $8.50 Fee & Select Your Shirt Size
Sun 14th February 2027 (9:00AM MST)
$133.50
Series entry gets you into all three Winter Series events: December 12 - Superior Stocking Run 5k January 24 - Yeti Chase 10k February 14 - Ralston Creek Half Marathon
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6542 Fig Street, Arvada, 80004, CO, United States
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Ralston Creek Half Marathon & 5k
