Welcome to the 3CX 2026 Mountain Bike Race Series — the Bay Area’s biggest and longest-running MTB race series, now entering its 29th year of full-gas racing at Fort Ord, California.
3CX is known for its fast, flowy courses, smooth rhythm, and friendly racing atmosphere. Each round delivers a perfect blend of speed, endurance, and fun — open to all ages and skill levels, from first-timers to elite XC racers.
ALL WEATHER RACING! (SEE UPDATES BELOW)
📅 2026 Race Dates
January 4 · January 18 · February 1 · February 15 · March 29
FREE Women's Skills Clinic - January 31.
All races take place at Fort Ord, CA, featuring the same fast, rolling terrain riders have loved since 1997.
🏆 Team Competition (New for 2026)
Bring your crew and go for team glory! Teams earn points based on rider results across the series. Schools, clubs, and local groups are all welcome.
Whether you’re chasing the podium or just out for a fast lap and good vibes, 3CX delivers pure, full-gas mountain bike racing — the way it’s meant to be.
THERE IS NO ONSITE REGISTRATION FOR ANY 3CX RACES. REGISTRATION CLOSES AT 12PM 2 DAYS PRIOR TO RACE DAY. RACES ARE HELD RAIN OR SHINE.