*Race Day, January 16th, 2027*

Race HQ Info
Bike start and finish at 7Hills Brewery, Event Center (headquarters)
Run start and finish at the Durango Trailhead (outdoor headquarters)
Get to know the Heritage Trail

Registration gear includes:
SWAG Bag (Supplements+Goodies), Raffle prize =$40+ value! Event T-Shirt and Neck Gaiter (optional) + Woolie Boolie socks for podium winners. Podium for a chance to take away some hardware, more free gear, plus other great sponsor prizes!
All racers should stick around to celebrate and share their tall tales at the 7Hills Event Center. Warm food and merriment await all weary Triple D participants and volunteers. Hydration is very important so the beverages will be flowing. Celebrate and refuel...keep the circus alive!
Triple D Biking Races
- 70-Mile Triple D Race
- 35-Mile Double D Race
- 20-Mile Half Double D Race
- Poker Tour, Fun Ride 2027
Triple D Running Races
- 50K Ultra Marathon
- Full Marathon
- Half Marathon
- 5k stroll to get out of the house on a winter day
Special Rate Accommodations
BLOCK PRICING COMING SOON!
Hilton Garden Inn

Hilton Garden Inn Dubuque Downtown
Contact for Room Rate
Marriott TownePlace Suites

Marriott TownePlace Suites Dubuque Downtown
Event Room Rate @ $120/night -
Last Day to Book: Friday, December 26, 2025
Triple D Winter Endurance Race: Twenty Years of Cold Questionable Ideas
The circus is still in town.
In 2007, a handful of ruffians pointed their bikes into a Dubuque County winter and called it a race. The early years (2007-2012) were louder, less legal, and considerably more dangerous. Twenty years later, the circus has a permit, a few more rules, and the same questionable sense of humor about frostbite.
The route: Dubuque. Durango. Dyersville. Three D's, one long thread of trail. Ride it, run it, or skate it. Riders have long favored the 52-mile round trip between Heritage Pond and the Dyersville trailhead, remote and scenic, with very little support. Bring what you need, and bring a sense of humor for the rest.
The acts: Juggle water bottles down the Heritage Trail. Tightrope a bridge barely wider than your tire. Walk it, pedal it, or skate it. Every ability is welcome under this particular big top. The only requirement is that you show up willing to be a little ridiculous in the cold.
The ringmasters: The Triple D is organized by the Tri-State Mountain Bike Riders (TMBR) of Dubuque, Iowa, and run entirely by their volunteers. Yes, your entry fees deliver piping hot food and beverages and endless frost - while the remains go straight to the club and its mission to make the Tri-state a destination for mountain biking and outdoor recreation, by building, growing, and sustaining the trails closer to home.
Twenty winters. Come write the next legendary story.
Register now!
Trek Across Dubuque County in the Dead of Winter
Testimonials
"Truly awesome race. Staff and other racers are all so helpful and friendly. Recommend to anyone looking to eat some pizza, drink beer, and maybe bike 100k..."Whitney Beadle
"Whether you're looking to finish near the top or simply finish eventually, Triple D is sure to please. The course provides incredible back-country scenery, great food at the checkpoints, and weather conditions that always provide an interesting challenge. I've completed the race twice, both under very different conditions (-25 degrees F & 30 degrees F), and both times provided an unforgettable experience. Do the race; it's one of those stories that you'll tell your grandchildren someday."Les Hollingsworth
"Great race. Would recommend to anyone that is looking for a fun 1/2. Couldn't ask for a better day to run. Congratulations to all that took the challenge on."John A Trickler
Photos graciously provided by Bob Edwards Photography