Trail running course through mixed terrain in Michigan, USA
Run Woodstock

Run Woodstock — 100 Miles

100 Miles·410 ft gain·Pinckney, Michigan
ultra100 mileforesttrailloopbeginner friendly

AI-generated image

Distance100 Miles
Gain410 ft
DateSep 11, 2026
Difficulty4/5

About This Race

The 100-mile distance represents the ultimate test of endurance at Run Woodstock, requiring runners to complete multiple loops through Michigan's forested trails over what can stretch into a full day and night of running. This distance demands comprehensive preparation in nutrition, pacing, and mental fortitude as runners navigate the same scenic woodland sections repeatedly while managing the physical and psychological challenges of covering such extreme mileage. The course offers a true ultramarathon experience with the unique festival atmosphere providing motivation and support throughout the extended journey.

The Run Woodstock courses wind through the scenic forests and rolling terrain of southeastern Michigan. The trails feature a mix of singletrack paths and wider forest roads through lush woodlands. The course design allows for multiple distance options using shared trail sections, with longer races completing additional loops.

The terrain is characteristic of Michigan's lower peninsula, with moderate rolling hills rather than steep climbs. The forest canopy provides natural shade and creates an immersive woodland experience. Course marking and aid station support are designed to accommodate the wide range of distances and the festival's relaxed, supportive atmosphere.

Elevation Profile

Elevation profile estimated from terrain data. Actual course may differ.

The course gains 410 ft over 100 miles, with the steepest section between mile 36–mile 36.

Location

Practical Info

Weather

Early September in Michigan typically offers mild temperatures with warm days and cool evenings, though conditions can vary from hot and humid to cool and rainy.

Nearest Airport

DTW - Detroit Metropolitan Wayne County Airport

Accommodation

On-site drive-in camping available for $80 (Friday-Saturday), with basic facilities including latrines, hand washing stations, and heated showers. No electrical or water hookups available.

Best For

Festival atmosphere seekersFirst-time ultra runnersRunners seeking unique experiencesCommunity-minded runners

Notable Features

Run Woodstock creates a unique fusion of serious ultrarunning and 1960s counterculture celebration. The multi-day festival includes on-site camping, live musical performances throughout the weekend, yoga sessions, tie-dye workshops, and themed events like the Bohemian Beverage Mile. The event's "commune code" emphasizes community, environmental responsibility, and personal expression. Participants are encouraged to decorate campsites, engage with fellow runners, and embrace the festival's peace-and-love ethos while pursuing their running goals.

Other Distances at This Event

5 Miles

49 ft gain

The Run Woodstock courses wind through the scenic forests and rolling terrain of southeastern Michigan. The trails feature a mix of singletrack paths and wider forest roads through lush woodlands. The course design allows for multiple distance options using shared trail sections, with longer races completing additional loops. The terrain is characteristic of Michigan's lower peninsula, with moderate rolling hills rather than steep climbs. The forest canopy provides natural shade and creates an immersive woodland experience. Course marking and aid station support are designed to accommodate the wide range of distances and the festival's relaxed, supportive atmosphere.

Half Marathon

820 ft gain

The Run Woodstock courses wind through the scenic forests and rolling terrain of southeastern Michigan. The trails feature a mix of singletrack paths and wider forest roads through lush woodlands. The course design allows for multiple distance options using shared trail sections, with longer races completing additional loops. The terrain is characteristic of Michigan's lower peninsula, with moderate rolling hills rather than steep climbs. The forest canopy provides natural shade and creates an immersive woodland experience. Course marking and aid station support are designed to accommodate the wide range of distances and the festival's relaxed, supportive atmosphere.

Marathon

95 ft gain

The Run Woodstock courses wind through the scenic forests and rolling terrain of southeastern Michigan. The trails feature a mix of singletrack paths and wider forest roads through lush woodlands. The course design allows for multiple distance options using shared trail sections, with longer races completing additional loops. The terrain is characteristic of Michigan's lower peninsula, with moderate rolling hills rather than steep climbs. The forest canopy provides natural shade and creates an immersive woodland experience. Course marking and aid station support are designed to accommodate the wide range of distances and the festival's relaxed, supportive atmosphere.

50K

112 ft gain

The Run Woodstock courses wind through the scenic forests and rolling terrain of southeastern Michigan. The trails feature a mix of singletrack paths and wider forest roads through lush woodlands. The course design allows for multiple distance options using shared trail sections, with longer races completing additional loops. The terrain is characteristic of Michigan's lower peninsula, with moderate rolling hills rather than steep climbs. The forest canopy provides natural shade and creates an immersive woodland experience. Course marking and aid station support are designed to accommodate the wide range of distances and the festival's relaxed, supportive atmosphere.

50 Miles

1,804 ft gain

The Run Woodstock courses wind through the scenic forests and rolling terrain of southeastern Michigan. The trails feature a mix of singletrack paths and wider forest roads through lush woodlands. The course design allows for multiple distance options using shared trail sections, with longer races completing additional loops. The terrain is characteristic of Michigan's lower peninsula, with moderate rolling hills rather than steep climbs. The forest canopy provides natural shade and creates an immersive woodland experience. Course marking and aid station support are designed to accommodate the wide range of distances and the festival's relaxed, supportive atmosphere.

100K

2,067 ft gain

The Run Woodstock courses wind through the scenic forests and rolling terrain of southeastern Michigan. The trails feature a mix of singletrack paths and wider forest roads through lush woodlands. The course design allows for multiple distance options using shared trail sections, with longer races completing additional loops. The terrain is characteristic of Michigan's lower peninsula, with moderate rolling hills rather than steep climbs. The forest canopy provides natural shade and creates an immersive woodland experience. Course marking and aid station support are designed to accommodate the wide range of distances and the festival's relaxed, supportive atmosphere.