Ultramarathons in Wisconsin
32 upcoming Ultramarathon races in Wisconsin for 2026 and beyond — with dates, locations, and registration links.
- Thunderbird Warrior ChallengeSat, Jun 13, 2026 · Bayfield, WI50K25K10K5K
- Lad Lake's Kettle Classic Bike- Walk- Run Event 2026Sat, Jun 20, 2026 · Dousman, WI100K48.3K24.1K5K
- Wisconsin Triterium TriathlonSat, Jun 27, 2026 · Verona, WI23.1K46.9K
- Bike4FriendshipSun, Jun 28, 2026 · Bayside, WI48.3K96.6K100 Miles
- Pleasant Prairie TriathlonSun, Jun 28, 2026 · Pleasant Prairie, WI31.7K28.8K51.5K
- Door County Triathlon with myTEAM TRIUMPHSat, Jul 11, 2026 · Egg Harbor, WI34.4K113.1K
- Ride Across WisconsinSat, Jul 11, 2026 · Eau Claire, WI281.6K100 Miles96.6K19.3K
- Catfish Days 50 Bike TourSat, Jul 11, 2026 · Trempealeau, WI50 Miles
- Green Lake TriathlonSun, Jul 19, 2026 · Green Lake, WI34.4K51.7K
- Lake Ripley Ride 2026Sat, Jul 25, 2026 · Cambridge, WI29.0K64.4K100K
- Lake Country TriathlonSat, Jul 25, 2026 · Oconomowoc, WI28.4K52.6K113.1K
- Heatwave Half Marathon - MilwaukeeSat, Jul 25, 2026 · Milwaukee, WI50 Miles1 Mile5K10KHalf Marathon
- Pedal The Peace RidesSat, Jul 25, 2026 · Afton, WI14.5K50 Miles25K
- Tri-ing for A Cure TriathlonSun, Jul 26, 2026 · Dousman, WI29.5K51.5K
- Loon Ride at Mercer Bike FestSat, Aug 1, 2026 · Mercer, WI11.3K38.6K50 Miles
- Dairyland Dare Presented by Incredible BankSat, Aug 1, 2026 · Dodgeville, WI200K150K100K50K
- Bike to the Beat with myTEAM TRIUMPHSat, Aug 1, 2026 · Combined Locks, WI45.1K
- Beyond Design Bike TourWed, Aug 19, 2026 · Ixonia, WI48.3K
- Big Bull Falls Grand FondoSat, Aug 29, 2026 · Wausau, WI162.5K117.5K56.3K
- Fontana Triathlon on Geneva LakeSat, Sep 12, 2026 · Fontana, WI51.5K25.8K
- ¡Pick Me Up at the Border!Fri, Sep 18, 2026 · Fitchburg, WI125.2K65.3K35.9K
- Golden Harvest Half Marathon & 5k/10k - MilwaukeeSat, Sep 19, 2026 · South Milwaukee, WI50 Miles1 Mile5K10KHalf Marathon
- Fall Color FestivalSat, Sep 26, 2026 · Whitewater, WI50K29.0KHalf Marathon8K2.4K
- 2026 J-Hawk Latebird Race Series: Duathlon, Triathlon (Olympic, Sprint, & SuperSprint), AquaBike (Oly & Sprint)Sun, Sep 27, 2026 · Whitewater, WI25.8K29.0K48.3K
- Badger ChallengeSun, Sep 27, 2026 · Madison, WI100 Miles100K50K25K5KHalf Marathon
- 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, WI1 Mile5K10K50 MilesHalf Marathon
- Candy Cane Course - MilwaukeeSat, Dec 19, 2026 · Franklin, WI1 Mile5K10K50 Miles15K
- MadCity UltrasSat, Apr 10, 2027 · Madison, WI50K100K
- Prevea Health Run Away to the BaySat, Apr 10, 2027 · Oshkosh, WI88.5K