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Ultras · US · WI

Kettle Moraine 100

Kettle Moraine 100K · 100K
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
Start7:00am
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 100K
Climb not checked yet
Descent not checked yet
High point not checked yet
Time limit not checked yet
Aid stations 19
Started not checked yet
Finished not checked yet
Finish rate not checked yet
The course

Where it goes out and back · 19 aid stations

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

Identical route and aid stations to the first 63.9 miles of the 100 Mile course: an out-and-back on the Ice Age Trail from the Nordic Trailhead north to a turnaround near Scuppernong/Hwy ZZ and back, finishing at Nordic. Same start line as the 100 Mile and 38 Mile Fun Run.

This course is not separately charted by the race; its aid stations and mileage are the first 19 rows (0 to 63.9 mi) of the official 100-mile chart, reused here (inferred, not duplicated research). No separate published elevation-gain figure exists for just this portion of the course; the 100-mile course's total (8,800 ft over 100.5 mi) is not simply halvable given the out-and-back structure, so elevation fields are left null here rather than estimated.

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
Yes kettlemoraine100.com
Muling
Not allowed kettlemoraine100.com
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 and rules as the 100 Mile course (see that course's crew_rules); 100K runners and their crew may NOT park at Nordic or John Muir on race morning and must bus in from the Palmyra school lot instead. kettlemoraine100.com
Pacer rules
100K runners can pick up a pacer at Bluff starting at 6:30 pm; no pacer cars may be left behind at Bluff. kettlemoraine100.com
Drop bag rules
Same drop-bag system as the 100 Mile course: left at Nordic, trucked to Hwy 67, McMiller, Hwy 12 and Nordic by 7 am Saturday. kettlemoraine100.com
Cutoff philosophy
No separate fixed time limit is published for the 100K. The race's own rule: a 100K runner may stay on course as long as they are through the New North Horserider aid station (this course's mile 52.7 occurrence) by 11 pm, after which they must hit the same cutoffs as the 100-mile field at every subsequent station. The race explicitly softened this from an original 18-hour cutoff: runners who make the Horseriders cutoff may continue until the race ends at noon Sunday. 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 ? ? ? 5.10
5.10 Tamarack ? · · ? ? 2.30
7.40 Bluff ? · · ? ? 3.80
11.20 New North Horseriders Station 11:00pm · · ? ? 4.30
15.50 Natalie's 8RUN5 Station ? · · ? ? 4.00
19.50 McMiller ? ? ? 4.30
23.80 Wilton Road ? · · ? ? 3.30
27.10 Hwy 67 ? ? ? 2.30
29.40 Hwy ZZ ? · ? ? 4.90
34.30 Scuppernong ? · ? ? 0.20
34.50 Hwy ZZ ? · ? ? 2.30
36.80 Hwy 67 ? ? ? 3.30
40.10 Wilton Road ? · · ? ? 4.30
44.40 McMiller ? ? ? 4.00
48.40 Natalie's New Station ? · · ? ? 4.30
52.70 New North Horseriders Station ? · · ? ? 3.80
56.50 Bluff ? · · ? ? 2.30
58.80 Tamarack ? · · ? ? 5.10
63.90 Nordic 12:30am ? ? ?
Same race, other lines

Other distances and other years

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