Bizz Johnson

Event overview

The Bizz Johnson takes place October 11-12, 2025 in Susanville, California. Race events include:

• 50K
• Marathon (26.2)
• Half Marathon (13.1)
• Express Half Marathon (13.1)
• 10K

The full marathon course is USATF certified (CA18035RS) and is listed as a Boston Marathon qualifier. Relay entries will not be held in 2025. There is no race day registration. Bib and swag pickup occurs on Friday afternoon and on race mornings; 2025 participants receive a microfleece running beanie or performance running hat.

Course and logistics

Most races use the Bizz Johnson Trail through Lassen National Forest and the old Fernley and Lassen Branch railroad route. The marathon and 50K start near Mason Station (runners are bused to the remote start) and finish at Hobo Camp. The Saturday half and 10K start in Susanville and use the final section of the marathon route as an out-and-back. The Express Half Marathon on Sunday starts from a remote trailhead and finishes at Hobo Camp.

Course features include an initial climb of about 280 feet to Westwood Junction, a long descent through the final 20 miles, passage into the Susan River Canyon, ten river crossings on wooden railroad bridges, and two former railroad tunnels (approximately 800 ft and 450 ft). Aid stations will offer HEED electrolyte and Hammer Gel; the event uses reduced paper-cup practices and provides HydraPak Speed Cups. Time limits: Half and Express Half - 3.5 hours; Marathon and 50K - 8 hours. Visit the organization's website for the most recent information.