Wisconsin Ultramarathons
41 upcoming ultras across Wisconsin, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: ultras in Wisconsin
Wisconsin has 41 upcoming ultras over the next 12 months. September is the busiest month for them, with 12. Most are around Dousman, Whitewater, Arena. The next one is Goose Bumps 6 & 24 Hour Run on September 18 in Stoddard.
- Sep 202612 races
- Oct 20267 races
- Nov 20264 races
- Dec 20262 races
- Feb 20271 race
- Apr 20273 races
- May 20273 races
- Jun 20274 races
- Jul 20274 races
- Aug 20271 race
September 2026
- Wed 9/9Wisconsin ANVIL Ultra TriathlonDousman, WI · Ultra · register ↗
- Sat 9/12Fontana Triathlon on Geneva LakeFontana, WI · 51.5K · 25.75K · 25.8 Miles · from $94 · register ↗
- Fri 9/18Goose Bumps 6 & 24 Hour RunStoddard, WI · 24 Hour · register ↗
- Fri 9/18Last Dot Standing and 24/48 Hour by Ten Junk MilesBeleville, WI · 48 Hour · 24 Hour · Timed · register ↗
- Fri 9/18¡Pick Me Up at the Border!Fitchburg, WI · 77.8 Miles · 40.6 Miles · 22.3 Miles · from $20 · register ↗
- Sat 9/19Peninsula Century Fall ChallengeSister Bay, WI · 25 Miles · 50 Mile · 100K · 100 Mile · register ↗
- Fri 9/25Echo 136Whitewater, WI · 136 Miles · register ↗
- Sat 9/26Backyard NonsenseBrighton, WI · 24 Hour · 12 Hour · 6 Hour · 3 Hour · register ↗
- Sat 9/26Dirty Squirrel Gravel GrindMinocqua, WI · 100K · 50K · 15K · 5K · from $20 · register ↗
- Sat 9/26Fall Color FestivalWhitewater, WI · 50K · 18 Miles · Half Marathon · 5 Miles · 1.5 Miles · from $25 · register ↗
- Sat 9/26Queen of the RidgeArena, WI · Timed · Trail · register ↗
- Sun 9/272026 J-Hawk Latebird Race Series: Duathlon, Triathlon (Olympic, Sprint, & SuperSprint), AquaBike (Oly & Sprint)Whitewater, WI · 16 Miles · 18 Miles · 30 Miles · from $50 · register ↗
October 2026
- Sat 10/10Backyard Run / Walk for the AnimalsNeosho, WI · Ultra · from $35 · register ↗
- Sat 10/10Broken Rock Trail RunsDodgeville, WI · 50K · 20 Miles · 10 Mile · Trail · register ↗
- Sat 10/10HELIOS 6/12/20 HOUR ULTRAEagle, WI · 6 Hour · 12 Hour · 20 Hour · from $50 · register ↗
- Sat 10/17Black River Trail ClassicMillston, WI · 85K · 50K · 25K · 10K · Trail · register ↗
- Sat 10/24Door County Fall 50Sturgeon Bay, WI · 50 Mile · register ↗
- Sat 10/24Hixon 50La Crosse, WI · 5K · 10K · 16 Miles · 32 Miles · from $30 · register ↗
- Sat 10/31Among the TreesDousman, WI · 100K · 50K · from $50 · register ↗
November 2026
- Sat 11/7Icebox 480/240River Falls, WI · 8 Hour · 4 Hour · register ↗
- Sat 11/7Milwaukee Area Fall Frenzy (MAFF) Adventure RaceDelafield, WI · 3 Hour · 8 Hour · 18 Hour · from $65 · register ↗
- Sat 11/7Run Til You Snowdrop-24 Hour Treadmill RunAppleton, WI · Ultra · from $40 · register ↗
- Sat 11/14NCTRaces: 15xSolon Springs, WI · Timed · register ↗
December 2026
- Sat 12/5The Guv'nor Frozen 50Dodgeville, WI · 50K · 25K · 15K · register ↗
- Fri 12/18Quiet SilenceLake Mills, WI · 50K · 17.5 Miles · register ↗
February 2027
- Sat 2/27ARKTOSDousman, WI · 6 Hour · 12 Hour · 24 Hour · from $50 · register ↗
April 2027
- Sat 4/3NK50kGreenbush, WI · 50K · 25K · register ↗
- Sat 4/10MadCity UltrasMadison, WI · 50K · 100K · from $120 · registration closed · register ↗
- Sat 4/10Prevea Health Run Away to the BayOshkosh, WI · 55 Miles · from $20 · register ↗
May 2027
- Fri 5/7WausaUltra Solo, Double, LimitlessWausau, WI · Ultra · register ↗
- Sat 5/15Rumble on the RidgeArena, WI · Timed · Trail · register ↗
- Sat 5/29Sugar Badger 50/50 and HalfBelleville, WI · 50 Mile · 50K · Half Marathon · register ↗
June 2027
- Thu 6/24Washington Island UltraWashington Island, WI · 36 Hour · 24 Hour · from $275 · register ↗
- Sat 6/26Wisconsin Triterium TriathlonVerona, WI · 14.3 Miles · 46.9K · from $64 · registration closed · register ↗
- Sun 6/27MammothMarch WisconsinCascade, WI · 20 Miles · 30 Miles · register ↗
- Sun 6/27Pleasant Prairie TriathlonPleasant Prairie, WI · 31.7K · 28.75K · 51.5K · from $70 · register ↗
July 2027
- Sun 7/18Green Lake TriathlonGreen Lake, WI · 18.4 Miles · 31.3 Miles · from $64 · registration closed · register ↗
- Sun 7/25Tri-ing for A Cure TriathlonDousman, WI · 18.2 Miles · 51.5K · from $64 · registration closed · register ↗
- Sat 7/31Badger Trail Races by Ten Junk Miles RacingBelleville, WI · 100 Mile · 100K · Trail · register ↗
- Sat 7/31Lake Country TriathlonOconomowoc, WI · 17.6 Miles · 32.7 Miles · 70.3 Miles · from $60 · register ↗
August 2027
- Sat 8/14Run S'more 24Nashotah, WI · 50 Mile · 30 Miles · Marathon · Half Marathon · 10K · from $35 · register ↗
Planning a race
- The adventure listrim to rim, the big rounds, and routes worth planning a year around
- Getting inhow entry works for the races that sell out or ballot
More Wisconsin: Marathons · Half Marathons · 5K Races · 10K Races · All Wisconsin races · Browse by state