Welcome to the Triple D Winter Endurance Race!

Saturday,
January 17th, 2026

The Triple D Winter Race is a winter endurance trail event that traverses Dubuque County, Iowa in the dead of winter by bike or foot.

All racers Register Here!
We encourage everyone to register online.

TMBR members receive a 20% discount on all race categories!
Email tripledrace@gmail.com for your membership discount code.

Not a TMBR member?
Learn more about IMBA’s mission and join TMBR at www.tmbrtrails.org.

Triple D Headquarters

7Hills Brewing Company (Event Center)
1098 Jackson Street, Dubuque, IA 52001

Triple D Winter Race supports TMBR (Tri-State Mountain Bike Riders)!  TMBR’s purpose is to enhance the experience of mountain bikers and other trail users in the Tri-State area through improved trails, amenities, and social networking.
Learn more about the TMBR trail systems or check out the TMBR group pages on Facebook.