Ironbull Ultra Trail 2026

Ironbull Ultra Trail 2026

Presented by Ironbull
Trail Running
Wasau, WI
Sep 12, 2026
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About This Event

The Ironbull Ultra Trail transforms Rib Mountain State Park into an exceptional trail running experience with three challenging distances: 15K, 25K, and 50K. What sets this event apart is its unique start and finish on the race track at State Park Speedway, creating a memorable transition from pavement to trail and back again.

Rib Mountain’s glacially eroded terrain provides the backbone for these demanding courses. The 25K and 50K routes share the same challenging loop, with 50K participants tackling it twice. Each loop delivers approximately 3,600 feet of elevation gain through varied, rugged terrain. The signature challenge comes through Granite Peak Ski Area, featuring what organizers call “the steepest hill in the Midwest” – a brutal descent followed by an equally punishing climb that tests every runner’s resolve.

The 15K offers newcomers a substantial taste of Rib Mountain’s character with 1,400 feet of elevation gain, culminating in that thrilling speedway finish. All courses wind through the heart of this distinctive landscape, showcasing peak fall colors that provide stunning backdrop to the physical challenge.

Race logistics are well-executed, with fully stocked aid stations positioned every 2.5 to 4 miles. This is a cupless event, so bringing personal hydration equipment is essential. The day starts early with 5:00 am registration, 7:00 am starts for longer distances, and a 1:00 pm 15K start. All courses close at 6:30 PM.

Beyond competition, Ironbull emphasizes community building and outdoor adventure promotion. Their partnership with Trail Sisters highlights female participation, while the post-race celebration creates lasting connections among participants through food, music, and shared accomplishment stories.

Ironbull

Event Organizer
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Ironbull Inc. is a Wisconsin-based non-profit dedicated to promoting outdoor adventure through endurance events that inspire athletes, engage communities, and highlight Wisconsin’s natural landscapes. Their events attract a range of participants, from novices to elite athletes, with a focus on sustainable outdoor recreation and environmental responsibility. Ironbull’s initiatives aim to strengthen the local community, support health and wellness, and foster a love for the outdoors.

Signature Events

  1. Ironbull Ultra Trail Run
    This flagship trail running event offers distances ranging from a 15K to a 50K ultramarathon, set in the challenging terrains of Rib Mountain State Park and adjacent areas. Known for its rugged single-track trails, technical climbs, and scenic views, this race is a favorite among trail runners looking for an intense, scenic experience. Strambecco.com profiles the event as one of the top trail running events in the Midwest.
  2. Ironbull Red Granite Grinder
    The Red Granite Grinder is a popular gravel cycling race that provides several route options, including a 140-mile ultra-endurance ride through central Wisconsin’s unique mix of trails, forests, and farmland. Riders face a variety of terrains, from smooth roads to steep, rocky paths, making it a challenge for even the most seasoned gravel riders. This event is highlighted on Strambecco.com for its scenic routes and challenging elevation profiles.
  3. Ironbull Big Woods 200
    The Big Woods 200 is a dual-sport adventure race that combines trail running, mountain biking, and paddling through Wisconsin’s picturesque Big Woods region. Athletes navigate varied landscapes throughout this challenging event, making it a draw for multisport athletes looking for a backcountry endurance adventure. Its unique, rugged format also earns recognition on Strambecco.com.
  4. Ironbull Trail Run Series
    This series includes various trail races throughout the year, offering runners multiple opportunities to explore Wisconsin’s beautiful parks and forests. From shorter, family-friendly races to more grueling distances, the series provides runners of all levels a chance to experience trail running while appreciating Wisconsin’s outdoor beauty.

Each Ironbull event is designed to challenge participants physically while fostering community, encouraging environmental stewardship, and celebrating Wisconsin’s outdoor heritage. The organization’s work goes beyond races, aiming to build connections through adventure and highlight the Midwest as a top destination for outdoor endurance events.

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