Thrilla CX
Cyclocross racing series through September, part of the Horner Cycling Foundation's off-road race calendar near Portland.
Schedule Sept 9, 16, 23, 30 2026 9:00 AM
Location Portland area Portland, US
Organizer Horner Cycling Foundation
The vibe
Thrills, spills, cyclocross drills
The Horner Cycling Foundation runs Thrilla CX as part of a broader mission to fund youth and community cycling in the Portland area, so every entry fee is doing double duty — support the sport while you’re out there getting muddy. The series overlaps with Twilight CX on the calendar, giving racers a Saturday morning option to pair with midweek evening racing.
Course design leans technical, with the kind of off-cambers and run-ups that separate strong bike-handlers from strong engines. A good series for racers who want to sharpen the skill side of cyclocross, not just the fitness.