*Race Day, January 18th, 2025*

Triple D Winter Endurance Race - Biking and Running Event

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: Event T-Shirt, SWAG Bag (Supplements+Goodies), Raffle prize = $40 value! Podium for a chance to take away some hardware, more free gear, plus sponsor prizes!

Sponsor Hotel Accommodations

TownePlace Suites by Marriott Dubuque Downtown

Room Rate @ $134/night


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
  • 17-Mile Half Double D Fun Ride+Poker Tour
  • Poker Tour 2025 Map (Coming Soon!)

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

The Tales of Triple D

So here are some things that you may find useful about the race – yes, it is a bit of a circus so keep that in mind. Riders will traverse a rather scenic route by bike or by foot and enjoy the remote splendor with little support. Whether you are juggling water bottles as you skate down Heritage Trail, or you are balancing a tight-rope thin bridge on the bike route, there is something for every outdoor enthusiasts...of all ability levels.

Many riders in the area have ridden the 52-mile round trip between Heritage Pond and the Dyersville trailhead. In fact, you can start in Dubuque, ride through Durango, and end in Dyersville; it clearly connects all the D's of the Triple D along that route. The Triple D Winter Endurance Race is proudly supported and organized by the Tri-State Mountain Bike Riders (TMBR) of Dubuque, Iowa. This event is strictly a donation to the club and made possible by volunteers of the TMBR organization. This helps to further their mission to make the Tri-state area a destination for mountain biking and other outdoor recreation. It is all  made possible by building, growing, and sustaining those trails that are closer to home.

Thank you for your support!

Register now!

Trek Across Dubuque County in the Dead of Winter

Testimonials

Photos graciously provided by Bob Edwards Photography