Oregon 24/12 2026

Oregon 24/12 2026

Presented by Mudslinger Events
Mountain Biking
Bend, OR
Jul 11–12, 2026
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About This Event

This overnight mountain biking endurance test challenges riders to complete as many 11-mile loops as possible in either 12 or 24 hours through the forests surrounding Bend. Each lap delivers 900 feet of climbing across a mix of single-track and double-track trails, creating a manageable but cumulative challenge as fatigue sets in during the dark hours.

The format flexibility sets this event apart from typical endurance races. Solo riders can test their limits against the clock and their own mental fortitude, while teams of up to 10 people can share the workload and turn the experience into a social adventure. Many teams embrace creative themes, adding a playful element to the serious business of riding through the night.

Starting and finishing at Wanoga Snow Park, the event provides on-site camping as part of the experience. Riders roll out of their tents and straight onto the course, with coffee, food, and technical support available throughout the night to keep everyone moving. The overnight format demands proper lighting—headlamps and bike lights are essential gear for navigating the trails in darkness.

The course’s design allows riders to gauge their effort and strategy with each completed loop. The consistent distance and elevation gain per lap makes pacing decisions straightforward, while the variety of terrain keeps the riding engaging even as the hours accumulate. Aid stations at the start/finish area provide regular opportunities to refuel, adjust gear, and connect with other participants.

As part of both the N24 Series and Oregon XC Series, this event attracts serious endurance athletes alongside recreational riders looking for a unique challenge in one of the Northwest’s premier mountain biking destinations.

Mudslinger Events

Event Organizer
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Mudslinger Events is a well-established organizer of some of the best mountain bike, gravel, and mixed-surface races in the Pacific Northwest. Founded by Mike Ripley, a passionate mountain biker from Oregon, Mudslinger Events has been a key player in the cycling community since 1987, bringing a vintage atmosphere to modern mountain biking and cross-country racing.

Prominent Events Organized by Mudslinger Events:

  1. Mudslinger XC
    • Description: One of the oldest mountain bike races in the Northwest, the Mudslinger XC has been a fixture on the Oregon cycling calendar since 1987. This race is known for its challenging courses that weave through the beautiful forests of Oregon, making it a must-ride event for mountain biking enthusiasts. It is part of the Oregon XC Series.
    • Link: Mudslinger XC Details
  2. High Cascades 100
    • Description: This is the ultimate endurance mountain bike race, covering 100 miles with nearly 10,000 feet of elevation gain. Held in Bend, Oregon, the High Cascades 100 is part of both the Oregon XC Series and the National Ultra Endurance Series, attracting top riders nationwide. The race is known for its demanding course and stunning scenery.
    • Link: High Cascades 100 Details
  3. Oregon 24/12
    • Description: An overnight mountain biking event in Bend, Oregon, where participants can ride for either 24 or 12 hours. The event is part of the Oregon XC Series and is beloved for its challenging course and vibrant community atmosphere. Riders can choose to compete solo or in teams, making it a versatile and exciting challenge.
    • Link: Oregon 24/12 Details
  4. Oregon Triple Crown Series
    • Description: A series of five premier gravel and mixed-surface events, including the Oregon Coast Gravel Epic and Sasquatch Duro. These events are recognized as some of the best gravel races in the Northwest, offering a variety of terrains and challenges for gravel enthusiasts.
    • Link: Oregon Triple Crown Series Details

Mudslinger Events continues to thrive, offering a range of well-organized and highly regarded races that attract cyclists from across the country, with each event providing a unique blend of challenge, community, and natural beauty.  You can also view all of Strambecco’s Best-in-Class events covering the Northwest including Road, Gravel and MTB events.

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