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Ultras · US · WI

Kettle Moraine 100

Kettle Moraine 38 Mile Fun Run · 38M
On the calendar
The date is set. Entry has not opened. As of this research (August 2026) the official site and UltraSignup still show the completed 2026 edition (June 13-14, 2026, UltraSignup did=128736) and have not yet published a 2027-specific page. The 2027 date is INFERRED from the race's own stated pattern, 'Race is always the second Saturday of June' (confirmed on the homepage), which independently reproduces June 13, 2026 for the just-run edition. The second Saturday of June 2027 is June 12. This was cross-checked (not cited, per house rules on ultraracecalendar.com) against ultraracecalendar.com, which independently lists 'Kettle Moraine | La Grange, United States | Jun 12-13, 2027 (Sat-Sun)', matching the computed date. No 2027 UltraSignup event id exists yet; each year gets a new one (2025=did 122592, 2026=did 128736).
Race dateJune 12-13, 2027
Duration2 days
Start5:00pm
Whenin 294 days
First held1996
Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this. Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.
Distance 38M
Climb not checked yet
Descent not checked yet
High point not checked yet
Time limit not checked yet
Aid stations 11
Started not checked yet
Finished not checked yet
Finish rate not checked yet
The course

Where it goes out and back · 11 aid stations

Course line from the race's own GPX. Source file.

A non-competitive, night-time out-and-back over the southern half of the 100-mile course: Nordic Trailhead south to Rice Lake and back. Explicitly designed to let a runner pace or accompany a 100-mile runner over the race's final, hardest stretch; many Fun Run entrants deliberately start when 'their' 100-miler comes through Nordic rather than at a fixed clock time.

This course is not separately charted by the race; its stations and mileage are the second half (mile 63.9 to 100.5) of the official 100-mile chart, re-zeroed to start at 0.0 (inferred arithmetic, e.g. Rice Lake at 82.2 - 63.9 = 18.3 mi for this course). The 36.6 mi total from that arithmetic is close to, but not identical to, the race's own '38 mile' branding and to the GPX-measured 36.42 mi -- none of the three figures reconcile exactly, and none is treated as authoritative over the others.

The race

What this one is

A 100-mile (with 100K, 50K and 38-mile companion distances) trail race entirely on the Ice Age National Scenic Trail and connecting trails in the Kettle Moraine State Forest's Southern Unit, run as two out-and-back sections from the Nordic Trailhead near Whitewater/La Grange, Wisconsin. A Western States 100 qualifier and part of the Midwest Grand Slam of Ultra-running.

Started in 1996 by Kevin and Kris Setnes, who race-directed for 6 years. Tim "Timo" Yanacheck and Jason Dorgan then co-RD'd until 2018. Michele Hartwig of Ornery Mule Racing has directed the race since. The Wisconsin DNR asked the race to stop routing through the Emma Carlin trailhead starting in 2020, and the course has been adjusted since (a shooting-range-adjacent McMiller Sports Center section and an Eagle Horse Trail sandy section were both new as of the 2021 running).

Getting in

Getting in Entry, lottery and what the race asks of you before race day.

Lottery
Yes
Lottery opens
Dec. 1, 2026 ultrasignup.com
Lottery draw
Jan. 1, 2027 ultrasignup.com
Field cap
not checked yet
Registration
UltraSignup ultrasignup.com
Qualifying
not checked yet
Minimum age
not checked yet
Transfers
No kettlemoraine100.com
Deferrals
Yes kettlemoraine100.com
Crew, pacers and drop bags

The rules that shape your day Anything marked "not checked yet" is a gap in what we hold, never a no from the race.

Crew allowed
Yes kettlemoraine100.com
Vehicles per runner
not checked yet
Pacers
No kettlemoraine100.com
Muling
not checked yet
Drop bags
Yes kettlemoraine100.com
Cupless
not checked yet
Course marking
Fully Marked kettlemoraine100.com
Night running
Yes kettlemoraine100.com
Dogs
not checked yet
Headphones
not checked yet
Crew rules
Same crew-access aid stations (Hwy 12, Rice Lake) and general rules as the 100 Mile course over this shared stretch.
Pacer rules
not checked yet
Drop bag rules
Runners may leave a drop bag early Saturday morning, or by 1 pm, to have it trucked to Hwy 12; the race notes it is tight on volunteers to deliver bags out there later than that. kettlemoraine100.com
Cutoff philosophy
Runners may start any time at or after 5:00 pm Saturday (including later, to sync with a specific 100-mile runner) and have until noon Sunday to finish. kettlemoraine100.com
Aid stations

Every stop, and what you get there ● yes   · no   ? nobody has checked

Mile Station Cutoff Crew Bag Pacer Med To next
0.00 Nordic 12:30am ? ? 5.10
5.10 Tamarack ? · · ? ? 2.30
7.40 Bluff ? · · ? ? 2.50
9.90 Duffin Road ? · · ? ? 4.10
14.00 Hwy 12 ? ? ? 4.30
18.30 Rice Lake 6:30am · ? ? 4.30
22.60 Hwy 12 ? ? ? 4.10
26.70 Duffin Road ? · · ? ? 2.50
29.20 Bluff 10:00am · ? ? 2.30
31.50 Tamarack ? · · ? ? 5.10
36.60 Nordic ? ? ? ?
Same race, other lines

Other distances and other years

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