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Race data compiled from public sources; dates change — always confirm with the race organizer. Terrain: Mapzen/AWS Open Data, USGS 3DEP.

WI
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Wisconsin · La Grange

tBunk

Nov 6, 2026

Founded in 2013 and named in honor of Tom Bunk — a mentor and ultrarunner who died in September 2014 — tBunk runs 11 loops of the 9.19-mile Blue Loop through the Nordic trail system in Southern Kettle Moraine State Forest, totaling 101 miles on 100% unpaved trail with roughly 9,000 feet of gain. The race is cupless, allows pacers after the first 5 loops, and raises all proceeds for Kettle Moraine State Forest projects, including a permanent shelter at the Scuppernong trailhead. The 100-mile cutoff is 30 hours; the event also offers 50-mile, 150-mile, and 200-mile distances on the same loop.

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The numbers

Race statistics

Distance
100 mi
Vertical gain
9,000 ft

90 ft / mi

Course
Loop

11 mi loop

Unique miles
9 mi
Entry fee
$140
Lottery
No
Avg finishers
136

per year

◈ From the runners

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