www.witriseries.com The Wisconsin Triathlon Series is an annual series of seven races held throughout Wisconsin during the spring and summer months.
All races in the series offer sprint distance, while the Wisconsin Triterium, Green Lake and Tri-ing for Children's Triathlons also offer an Olympic distance. Whether you are new to triathlons or have been doing them for years, we have a race that suits you!
07/21/2026
Tri-ing for a Cure is this weekend!
📅 When: Sunday, July 26
🕖 Start Time: 7:00 AM
📍 Where: Ottawa Lake State Park
The fifth race of the Wisconsin Triathlon Series is back for its 18th year with Sprint, Olympic, and Relay races.
Sign up now, choose your race, and be a part of this unforgettable experience.
07/14/2026
One down, two triathlons to go in July! We’ll see you this weekend at the Green Lake Triathlon on Sunday, July 19. 🏅
That’s not all for this month – so keep your tri gear handy! The Tri-ing for a Cure Triathlon is the following Sunday, July 26.
We can’t wait to see you on the start line!
Not registered? There’s still time to sign up!
07/01/2026
Get ready for 3 back-to-back weekends of races! You’ve trained for this and now it’s time to celebrate on race day!
✨ Pardeeville Triathlon | Saturday, July 11 | Pardeeville
✨ Green Lake Triathlon | Sunday, July 19 | Green Lake
✨ Tri-ing for a Cure Triathlon | Sunday, July 26 | Dousman
Triple the races. Triple the fun!
06/22/2026
Wisconsin Triterium is this weekend and the atmosphere is going to be electric! Get ready to swim, bike, and run to the finish! 🏁
Don’t stop now! One triathlon is fun, but 4 is better! Choose your favorites, register for the 4-race bundle, and lock in your spot on more start lines this summer!
✨ Wisconsin Triterium Triathlon | Saturday, June 27 | Verona
✨ Pardeeville Triathlon | Saturday, July 11 | Pardeeville
✨ Green Lake Triathlon | Sunday, July 19 | Green Lake
✨ Tri-ing for a Cure Triathlon | Sunday, July 26 | Dousman
✨ Sugar River Triathlon | Sunday, August 23 | Belleville
✨ Devil’s Challenge Triathlon | Sunday, September 20 | Baraboo
Sign up today!
06/11/2026
Lake Mills was a race to remember! Congratulations to all the finishers! 🏅
Next up is the Wisconsin Triterium on June 27th. Invite a friend, register for the 4-race bundle, and choose your summer triathlon adventures.
06/09/2026
Join us on June 14th for the Green Lake Triathlon Clinic!
Whether you're brand new to triathlon or looking to sharpen your swim, bike, and run skills, this hands-on clinic is designed to help you feel prepared, confident, and ready to race. Learn from experienced coaches, get your questions answered, and practice the skills that can make a huge difference on race day.
✅ Open-water swim tips
✅ Transition practice
✅ Bike and run guidance
✅ Race-day strategy
✅ Perfect for beginners and experienced athletes alike
Don't let uncertainty keep you from the start line. Invest a few hours now and enjoy a more successful and enjoyable triathlon season!
📅 Sunday, June 14
📍 Green Lake, WI
Register today:
Green Lake Triathlon Clinic Registration
Tag a friend who's been talking about trying a triathlon this year! 👇
06/01/2026
✨ Happy race week! ✨
Our first race, the Lake Mills Triathlon, is this weekend! This course is perfect for beginners and competitive athletes and features a 400-meter swim, 16-mile bike, and 5K run on a flat, fast course.
Race this weekend, but don’t stop there! This is your last chance to sign up for the full, 7-race series and make this summer unforgettable!
Don’t miss out! Series registration ends on June 7th!
05/27/2026
⏰ Time is running out to sign up for the full Wisconsin Triathlon Series!
Each event features a sprint distance, while the Wisconsin Triterium, Green Lake, and Tri-ing for a Cure Triathlons also offer Olympic distances, allowing you to customize your race season.
✨ Lake Mills Triathlon | Sunday, June 7 | Lake Mills, WI
✨ Wisconsin Triterium Triathlon | Saturday, June 27 | Verona, WI
✨ Pardeeville Triathlon | Saturday, July 11 | Pardeeville, WI
✨ Green Lake Triathlon | Sunday, July 19 | Green Lake, WI
✨ Tri-ing for a Cure Triathlon | Sunday, July 26 | Dousman, WI
✨ Sugar River Triathlon | Sunday, August 23 | Belleville, WI
✨ Devil’s Challenge Triathlon | Sunday, September 20 | Baraboo, WI
Don’t miss out! Register by June 7th to be a part of this incredible 7-race tri series!
05/19/2026
Let us introduce you to Friends of Devil’s Lake State Park - our charity partner for the Devil’s Challenge Triathlon! Their mission is to support the park with their minds, muscle, and might and to ensure the park remains a vibrant jewel of nature. 🌲
This year’s charity donations will go toward the Campaign for America’s State Park, to build a much-needed visitor center at the park while promoting stewardship to sustain this special place for next generations.
We’re proud to support the future of Devil’s Lake. Learn more 👇
friendsofdevilslake.org
Ready to feel more confident heading into race season? Join us for the Green Lake - Redline Triathlon Club Tri Clinic!
📅 June 14, 2026
⏰ 7:30 AM – 10:00 AM
📍 Deacon Mills Park
This FREE tri clinic is designed for athletes of all levels—whether you’re preparing for your first triathlon or looking to fine-tune your race-day strategy.
During the clinic we’ll cover:
🏊 Open water swim skills (wave starts, sighting, entries & exits)
🚴 Transition setup and tips for faster transitions
🏃 Race-day preparation and building your routine
📋 Essential gear and pre-race planning
🗺 Short previews of the bike and run courses
Bring your race-day gear if you have it!
Swim gear, bike & helmet, running shoes, water bottle, sunscreen, towel, race belt, and a change of clothes.
Come out, practice your skills, and get excited for race day with fellow triathletes! 🚴♂️🏊♀️🏃♂️
Sign Up TODAY:
Tri Clinics 2026 Our FREE tri clinics are geared toward the beginner athlete looking to do their first triathlon or intermediate athletes seeking to improve their performance or gain insight on a particular course. Your clinic coach will help you feel more confident, prepared and excited for race day. We will highli...