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Ultras · US · WI

Kettle Moraine 100

Kettle Moraine 100 Mile · 100M
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
Start6:00am
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 100M
Climb not checked yet
Descent not checked yet
High point 1,050 ft
Time limit 30:00:00
Aid stations 29
Started not checked yet
Finished not checked yet
Finish rate not checked yet
The course

Where it goes out and back · 29 aid stations

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

Point-to-loop-to-point course on the Ice Age Trail and connecting trails, run as two consecutive out-and-back sections from the Nordic Trailhead: north to a turnaround near Scuppernong and back (0 to 63.9 mi, shared with the 100K), then south to a turnaround at Rice Lake and back (63.9 to 100.5 mi, shared with the 38 Mile Fun Run). About 80% wooded singletrack with some prairie/marsh sections; described by the race as "a roller coaster of hills, with rocks and roots scattered about to various degrees." A Western States 100 qualifier.

Total elevation gain is published as approximately 8,800 ft (course-description page); a 2021 third-party race report instead states 9,500 ft of gain for the same course -- both recorded, not reconciled. Course distance is also inconsistent across the race's own pages: the operational aid-station/mileage spreadsheet totals 100.5 mi, the aid-stations page's drop-bag note says Nordic is passed at "Mile 0, 63.9 and 100.6" (100.6, not 100.5), and the official course GPX (a 2021 recording, see gpx notes) measures 99.61 mi. The 100.5 mi chart figure is used as distance_miles since it is the race's own operational document; the others are noted here rather than resolved.

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
Kettle Moraine 100 Mile finishers earn a Western States 100 qualifier. kettlemoraine100.com
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, from mile 62.00 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
Crew and pacers may only be present at aid stations the race marks crew-accessible; going to a no-crew station (even just to drop off a runner) is grounds for disqualification. Bluff is crew/pacer-inaccessible until 6:30 pm Saturday regardless of which pass a runner is on. Parking is limited at several stations (all four tires must be off the road, or move to the next station); Hwy ZZ has no parking at all and crew must walk in from the Scuppernong lot. Crews need a Wisconsin State Park day pass to park in DNR lots after 7:30 am, and only 100-mile runner vehicles may enter the Nordic/John Muir lots before 7:30 am on race morning. kettlemoraine100.com
Pacer rules
One pacer on course at a time (a runner may use multiple pacers across the race), picked up at or after the 100 km point (~mile 62, the Bluff aid station) once it opens to pacers at 6:30 pm Saturday. Runners over 60 may pick up a pacer earlier, at Hwy 67 on the second pass (mile 37). Pacers must sign a waiver online before getting on course; muling is not allowed, a runner must carry their own aid and bottles between stations. kettlemoraine100.com
Drop bag rules
All drop bags are left at the Nordic Trailhead (at Friday packet pickup or race morning) and trucked out to Hwy 67, McMiller, Hwy 12 and Nordic itself by 7 am Saturday; they are returned to Nordic when each aid station closes. Bags should be a small duffel, roughly 20 x 15 x 10 inches, no large coolers or excessively heavy bags. kettlemoraine100.com
Cutoff philosophy
The race publishes only three truly hard cutoffs: leave Nordic (mile 63.9) by 18 hours in (per the aid-stations page's summary, i.e. midnight; the operational chart instead prints 12:30 am Sunday and race-info prose prints 12:25 am -- see difficulty_notes for the conflict), leave Rice Lake (mile 82.2) by 6:30 am Sunday, and leave Bluff (mile 93.1, final pass) by 10 am Sunday. Every other aid station simply has an absolute clock-time closing rather than a per-runner cutoff; a runner needs to be in and out before that time. 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 ? ? 5.10
69.00 Tamarack ? · · ? ? 2.30
71.30 Bluff ? · · ? ? 2.50
73.80 Duffin Road ? · · ? ? 4.10
77.90 Hwy 12 ? ? ? 4.30
82.20 Rice Lake 6:30am · ? ? 4.30
86.50 Hwy 12 ? ? ? 4.10
90.60 Duffin Road ? · · ? ? 2.50
93.10 Bluff 10:00am · ? ? 2.30
95.40 Tamarack ? · · ? ? 5.10
100.50 Nordic ? ? ? ?
Same race, other lines

Other distances and other years

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