200 Miles.
16,800 feet.
No Joke.

JUNE 21
2025

More than 45 Years in the running. The Terrible Two is one of America's most challenging endurance road cycling events.

Sebastopol, California


REGISTER

The 2025 Terrible Two

Sonoma County's longest running and most challenging timed road cycling event.

The Terrible Two is our region's version of an epic, and has been running strong since 1976.

Registration is open

Courses

The 2025 Terrible Two offers three routes that take in some of the most spectacular and challenging scenery that Sonoma County has to offer.

Terrible Two

200 miles | 16,800 feet

131 miles | 11,800 feet

122 miles | 8,350 feet

Terrific 200K

Tremendous Super Century

COURSE DETAIL

Redesigned for 2025 to remain entirely within Sonoma Countyincluding the full Geysers loop, Stewarts Point-Skaggs Springs Rd and Fort Ross

The second half of the Terrible Two including Stewarts Point-Skaggs Springs Rd, Fort Ross and so much more

The Geysers loop with tons of fun and beautiful miles with plenty of rest stops

Sponsors

The Terrible Two proudly serves Hammer Nutrition fuels and supplements for our riders.