Ultramarathons in Wisconsin
26 upcoming Ultramarathon races in Wisconsin for 2026 and beyond — with dates, locations, and registration links.
- Fontana Triathlon on Geneva LakeSat, Sep 12, 2026 · Fontana, WI51.5K25.8KMarathon
- ¡Pick Me Up at the Border!Fri, Sep 18, 2026 · Fitchburg, WI125.2K65.3K35.9K
- Full Gandy RelaySat, Sep 19, 2026 · Danbury, WI75.6K
- Golden Harvest Half Marathon & 5k/10k - MilwaukeeSat, Sep 19, 2026 · South Milwaukee, WI50 Miles1 Mile5K10KHalf Marathon
- Dirty Squirrel Gravel GrindSat, Sep 26, 2026 · Minocqua, WI100K50K15K5K
- Fall Color FestivalSat, Sep 26, 2026 · Whitewater, WI50K29.0KHalf Marathon8K2.4K
- Badger ChallengeSun, Sep 27, 2026 · Madison, WI100 Miles100K50K25K5KHalf Marathon
- 2026 J-Hawk Latebird Race Series: Duathlon, Triathlon (Olympic, Sprint, & SuperSprint), AquaBike (Oly & Sprint)Sun, Sep 27, 2026 · Whitewater, WI25.8K29.0K48.3K
- Spooky Sprint - MilwaukeeSat, Oct 17, 2026 · Milwaukee, WI50 Miles1 Mile5K10KHalf Marathon
- Hixon 50Sat, Oct 24, 2026 · La Crosse, WI5K25.8K51.5K
- Among the TreesSat, Oct 31, 2026 · Dousman, WI100K50K
- Turkey Trails - MilwaukeeSat, Nov 21, 2026 · Milwaukee, WI50 Miles1 Mile5K10KHalf Marathon
- Candy Cane Course - MilwaukeeSat, Dec 19, 2026 · Franklin, WI50 Miles1 Mile5K10K15K
- MadCity UltrasSat, Apr 10, 2027 · Madison, WI50K100K
- Prevea Health Run Away to the BaySat, Apr 10, 2027 · Oshkosh, WI88.5K
- Wisconsin Triterium TriathlonSat, Jun 26, 2027 · Verona, WI23.1K46.9K
- Pleasant Prairie TriathlonSun, Jun 27, 2027 · Pleasant Prairie, WI31.7K28.8K51.5K
- Green Lake TriathlonSun, Jul 18, 2027 · Green Lake, WI29.7K50K
- Tri-ing for A Cure TriathlonSun, Jul 25, 2027 · Dousman, WI29.4K51.5K
- Heatwave Half Marathon/5K/10K - MilwaukeeSat, Jul 31, 2027 · Milwaukee, WI50 Miles1 Mile5K10KHalf Marathon
- Pedal The Peace RidesSat, Jul 31, 2027 · Afton, WI14.5K50 Miles40.2K
- Lake Country TriathlonSat, Jul 31, 2027 · Oconomowoc, WI28.4K52.6K113.1K
- Loon Ride at Mercer Bike FestSat, Aug 7, 2027 · Mercer, WI11.3K38.6K50 Miles
- Run S'more 24Sat, Aug 14, 2027 · Nashotah, WI50 Miles48.3KMarathonHalf Marathon10K5K
- Big Bull Falls Grand FondoSat, Aug 28, 2027 · Wausau, WI162.5K117.5K56.3K
- UltraTrax Alpine ValleySat, Oct 9, 2027 · Elkhorn, WI11.3K22.5K33.8K45.1K