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Whether a race, special group ride, training opportunity, or cycling-related community event, the 303 calendar showcases it all. To have an event posted here please follow this link: Event Policy Submission & Guidelines.
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Shimano CX Series: Interlocken
The Interlocken Course is considered the crown jewel of the Boulder Cyclocross Series. Perfectly landscaped grass will make you think you’re racing on a rolling golf course. If there’s a can’t miss event for new and season cross racers this is the venue!
Event details and registration here
Each venue is set up to test and challenge the athlete in unique ways, so come November we’re able to crown the best cyclocross racer in Colorado! When it comes time to train get ready for; the power sucking grass of Interlocken, the flowing grass of Harlow Platts, the canal of Sienna Lake, the 5280 stairs of Valmont, plus many more iconic elements at each venue!
Sept 8 – Harlow Platts
Sept 22nd – Valmont
Oct 6th – Interlocken
Oct 21st – Louisville
Nov 3rd – Sienna Lake
Nov 17th – Westminster
The Shimano Cycle X Series, the Chesaux Cup is a living, breathing, rolling memorial to a man who lived and breathed the sport. Founded in 2011, The Chesaux Cup is named for Boulder-area cyclist and all around outdoorsman Matthieu Chesaux who died tragically in a backcountry skiing accident in 2008. This year is a special one as we approach the 10 year passing of Matthieu and what would’ve been his 50th birthday.
Past winners include 2018 Stage 1 Winner Gage Hecht as well as Samuel Dolzani and 2x winner Ken Benesch.