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Run Woodstock Hallucination 100 2026

Run Woodstock Hallucination 100 2026

Presented by Running Fit Events · Updated July 2026
Trail Running
Gregory, MI
Sep 11–13, 2026
Solo

100 Mile

Distance
100 miles
Elevation Gain
9,000ft
Terrain
technical-trail
Difficulty Index
71Severe

100K

Distance
100K
Elevation Gain
6,000ft
Terrain
technical-trail
Difficulty Index
51Demanding

50 Mile

Distance
50 miles
Terrain
technical-trail

50K

Distance
50K
Terrain
technical-trail

Marathon

Distance
26.2 miles
Terrain
technical-trail
Duration
3 Days
Approachable Extreme

About This Event

Set against the backdrop of Michigan’s luscious forest, meandering dirt tracks, and the shimmer of a beach, the Run Woodstock Hallucination 100 2026 event isn’t just a race – it’s an experience that combines the serenity of nature with the spirit of the ’60s, all encapsulated in an ultra trail runner’s dream. Running Fit Events produces the headliner 100-mile event is the 4th leg of the Midwest Grand Slam of Ultrarunning and a qualifier for the famed Western States 100. Strambecco rates the event as one of the Best Trail-Running Events in the Midwest.

From free 5Ks to the mammoth 100-mile and 100-K races, there’s an event tailored for everyone. It’s a celebration of endurance, willpower, music, and the legacy of the Woodstock era. Run Woodstock Hallucination 100 2026 is a weekend where you can find harmony, get into the groove, indulge in yoga, and revive your karmic balance, while also getting your butt kicked on the trail. Furthermore, it supports the noble mission of Washtenaw Promise, empowering the children of Washtenaw County.

The groovy weekend kicks off with the Hallucination 100M & 100k on Friday afternoon, while the 50M, 50K, Marathon, and Half take place on Saturday. Both 100 Mile & 100K routes feature a 16.6-mile loop repeated multiple times (100 Mile: 6 loops, 100K: 4 loops with shortcuts). The total elevation gain per loop is approximately 1500′. Aid stations are spread roughly every 4-5 miles on the ultramarathon routes. Offering everything from soups and sandwiches to even pizzas for the evening crowd. Both the 100-mile and 100-ultras have a 30-hour time limit, ensuring everyone finishes safely.

All runners who conquer the Hallucination 100-mile challenge will be honored with a unique belt buckle and a peace sign medal to commemorate their accomplishment. Those who complete the 100K will receive the peace sign medal as a testament to their achievement. Groovy awards await the top three overall male and female finishers in all event categories, and accolades will be given to three deep in 5-year age groups. Saturday night will see the presentation of Theme Awards, a highlight of the weekend festivities, including awards for the ‘Hippest Hippies’, the ‘Campsite Award’, honoring the three most ‘far out’ campsites, and the ‘Hippest Vehicle’ award, which will be given to the top three vehicles that most spectacularly transport you back in time – retro Bugs, Busses, and Pinto!

Running Fit is a Michigan-based event producer known for organizing various road races, trail runs, and endurance events. Their events cater to athletes of all skill levels and focus on promoting health, community, and fun in the context of running.

One of their standout events is Run Woodstock, a multi-day trail running festival that embraces a Woodstock-inspired theme of peace, love, and running. The event features several races, including the flagship Hallucination 100 Mile Ultra. The Hallucination event is a challenging 100-mile trail race that takes runners through the scenic trails of Hell, Michigan, known for its rolling hills, wooded landscapes, and technical terrain. The festival atmosphere at Run Woodstock includes live music, camping, and yoga, making it a unique celebration of both endurance running and communal spirit.

Running Fit is known for creating experiences that go beyond typical races. It fosters a welcoming environment for runners to explore nature, push their limits, and enjoy the camaraderie of the running community.

Part of the series

Western States 100 Qualifier

Explore the series
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