Sunday, June 6, 2027Louisville, CO

Colorado 13er (Half Marathon/10k/5k)

3 events

13erHalfRoadStarts 6:30 AM
5k5KRoadStarts 6:40 AM
10k10KRoadStarts 6:40 AM

13erHalfRoadStarts 6:30 AM
5k5KRoadStarts 6:40 AM
10k10KRoadStarts 6:40 AM

Location

Approximate, from the race's ZIP code.

Typical race-day weatherGood weather · 82/100

High / low: 81° / 51°F; 27° / 11°C
Humidity: 44%; Dew point 40°F
Chance of rain: 30%
Wind: 7 mph; Average

Usually warm for a half marathon: about 62°F while racing.

Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.

Past results

Typical timesFinish times are typical for half marathons.4 years, 510 finishers; men and women compared separately.
Typical timesFinish times are typical for 10Ks.4 years, 308 finishers; men and women compared separately.
7% slowerFinish times are typically 7% slower than at other 5Ks.4 years, 257 finishers; men and women compared separately.

Year	Event	Finishers	Median	Men	Women
2026	13er · Half	146	2:16:00	2:15:58	2:16:02
2026	10k · 10K	105	1:02:45	59:39	1:07:12
2026	5k · 5K	65	37:17	34:52	38:49
2025	13er · Half	143	2:12:05	2:04:12	2:16:00
2025	10k · 10K	88	1:03:56	1:01:45	1:06:59
2025	5k · 5K	66	37:32	35:08	39:57
2024	13er · Half	114	2:13:15	2:05:54	2:23:44
2024	10k · 10K	64	1:07:22	1:06:59	1:10:30
2024	5k · 5K	76	34:44	33:09	35:49
2023	13er · Half	107	2:10:22	1:53:29	2:16:08
2023	10k · 10K	51	1:03:37	56:52	1:10:05
2023	5k · 5K	50	39:01	33:43	41:55

Median finish times from results published on RunSignup. Keyrace keeps only these summaries, never individual results. A fast or slow field affects times as much as the course does.

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