The 2025 Crater Lake 13M has concluded.

Crater Lake 13M

Race complete
Klamath Falls, OR, USA · August 9, 2025·
clear-day54°·67° high·Light·Dry
8

Race Day Weather

clear-day
54°at start
76° high
Light
Dry
Your goal
0:00:00

Comfortable temps, big temp swing

Mild 54°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 76°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

clear-night10
clear-night10
clear-day10
clear-day7
clear-day6
clear-day6
clear-day5
clear-day5

Pace Calculator

13.0mi
0:00:00
HH:MM:SS
Pace
—

Enter a finish time to see what race day does to it.

Get forecast alerts for Crater Lake 13M

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

The 13-mile run is held on the second Saturday of August inside Crater Lake National Park, Oregon. It follows the rim of the lake on paved park roads at elevations between 5,980 and 7,850 feet above sea level. The course has long grades, with climbs and descents of close to 1,000 feet at a time over stretches of nearly five miles.

Race weekend

Saturday, August 9
7:30 AMMarathon (26.2 mi)
7:30 AM13M (13.0 mi)
7:30 AM6.7M (6.7 mi)
Area Map

Course Map

FAQ

When is the 2025 Crater Lake 13M?

The 2025 Crater Lake 13M will be held on Saturday August 9, 2025.

What is the time limit for the Crater Lake 13M?

The time limit for the Crater Lake 13M is 2.5 hours.

What will the weather be like for the 2025 Crater Lake 13M?

The forecast calls for a high of 86°F and a low of 48°F with a 0% chance of rain.

Historical Weather

Based on 3 years of data
Avg Temp
60°F
L:52° H:67°
RunScore
7
Conditions
Rain Freq
0%
0 of 3 yrs
Wind3mph
Dew48°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
clear-day
54°/67°-
8
2024
clear-day
50°/65°-
7
2023
clear-day
52°/70°-
7