The 2026 Bizz Johnson Trail 50K has concluded.Share your finish

Bizz Johnson Trail 50K

Race complete
Susanville, CA, USA · October 11, 2026·
partly-cloudy-day48°·64° high·Light·Dry
9
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Race Day Weather

partly-cloudy-day
48°at start
68° high
Light
Dry
Your goal
0:00:00

Cool start — fast day potential, big temp swing

A cool 48°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 68°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

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Race Info

The Bizz Johnson Trail 50K starts at Mason Station near Westwood with a long out and back on McCoy Road before joining the Bizz Johnson Trail in Lassen National Forest. The trail follows the old Fernley and Lassen Branch Line railroad grade, climbing gently to Westwood Junction and then running downhill all the way to Susanville. In the Susan River Canyon runners pass orange cliffs, cross the river ten times on wooden railroad bridges and go through two former railroad tunnels near the end. It is a point-to-point course that finishes at Hobo Camp.

Race weekend

FAQ

When is the 2026 Bizz Johnson Trail 50K?

The 2026 Bizz Johnson Trail 50K will be held on Sunday October 11, 2026.

What is the time limit for the Bizz Johnson Trail 50K?

The time limit for the Bizz Johnson Trail 50K is 8 hours.

What will the weather be like for the 2026 Bizz Johnson Trail 50K?

The forecast calls for a high of 72°F and a low of 45°F with a 2% chance of rain. Check our detailed hourly forecast above for the best 50K race plan.

Historical Weather

Based on 6 years of data
Avg Temp
60°F
L:48° H:69°
RunScore
8
Conditions
Rain Freq
33%
2 of 6 yrs
Wind5mph
Dew33°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
33°/57°-
9
2025
partly-cloudy-day
38°/49°Light
10
2024
partly-cloudy-day
47°/62°Light
9
2023
clear-day
47°/72°-
7
2022
clear-day
68°/92°-
4
2021
clear-day
54°/84°-
7