That Dam Run Half Marathon
Race Day Weather
Cool start, gradual warming
Runners will face a cool start at 33°F, gradually warming to 41°F by the finish. Winds will be light at 7 mph from the W, mostly a non-factor for pacing. With the temperature below 65°F and humidity at 45%, runners should maintain a steady pace but can push the effort, especially during the beneficial tailwind segments from miles 2-3 and 8-10.
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Race Info
That Dam Run is a half marathon, 10K, and 5K held at Cherry Creek State Park near Greenwood Village, Colorado. The course starts near Dam Road and South Dayton Street and crosses the Cherry Creek Dam, with views of the reservoir, downtown Denver, and the Rocky Mountains. It is the closing event of the RunDenver Series, produced by HAL Sports.
Race weekend
FAQ
When is the 2027 That Dam Run Half Marathon?
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Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2026 | 41°/51° | - | 19° | ||
2025 | 42°/53° | - | 15° | ||
2024 | 34°/40° | - | 12° |