RunDenver Series
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Event overview
RunDenver Series 2025-26 is a five-event winter running series in Denver, Colorado, produced by HAL Sports. The series has been held in the Colorado running community for over three decades. The main venue address listed is 3201 East 17th Avenue, Denver, CO 80206. The series works with charity partners Colorado Gynecologic Cancer Alliance and the Fetal Health Foundation; listed fundraising totals are $118.65 and $191.28 respectively.
Schedule and distances
The series consists of five events at specific dates and locations:
- Rudolph Ramble - 5K Dec. 7, 2025, City Park
- Polar Bear - 5K Jan. 18, 2026, Washington Park
- SuperBowl - 5K Feb. 1, 2026, Washington Park
- Valentine's Day - 4 Mile Feb. 8, 2026, Washington Park
- That Dam Run - 5K, 10K, Half Marathon March 1, 2026, Cherry Creek Dam Rd & Dayton
Registration, virtual options and competition
Series registration prices vary by the distance chosen for That Dam Run: $189.22 (5K), $205.27 (10K), and $242.72 (half marathon). A Virtual Series option is listed at $189.22. Youth (age 17 and under) and seniors (age 60 and over) receive a $15 discount. Full series registrants receive a quarter-zip fleece as a series swag item; individual event registrants receive that event’s swag item and finisher medal. Virtual participants receive event swag and medals by mail for the Virtual Series; switching an entry to virtual allows item pickup or paid mailing and requires virtual results be posted within one week. Series scoring awards points for each completed event; virtual completions receive 80% of the points for that event and awards are given based on overall points and age-group results. Visit the organization's website for the most recent information.