Trail Running calendar near Williams Bay 2025-2026

Bong Backyards is an exciting trail and ultra running event held at the scenic Richard Bong State Recreation Area in Brighton, Wisconsin. Scheduled for June 6, 2025, it offers multiple race distances, including the challenging Backyard Ultra and the Backyard 24, catering to runners of all skill leve..

The Blue Mound Trail Run is an annual trail running event held at Blue Mound State Park in south central Wisconsin. Organized by Wisconsin Trail Runs, this popular race features scenic courses through the park's natural landscape. The event offers multiple distance options to accommodate various run..

The Hickory Knolls Trail Run, held at Hickory Knolls Nature Area in St. Charles, Illinois, offers 5K and 10K individual races plus a 10K two-person relay. The course features a scenic, approximately 3-mile loop of grass, dirt, and gravel trails with a mix of flat sections and hills, set in a diverse..

The Kettle Moraine 100 Endurance Trail Races, held annually in June in the Southern Kettles of Wisconsin, offer challenging ultra-distance events including 100-mile, 100k, 50k, and 38-mile races. Established in 1996, the course is predominantly trail-based, with about 65 miles running along the scen..

The Whitewater Trail Challenge, held in Whitewater, Wisconsin, is a scenic trail running event set along a portion of the iconic Ice Age Trail. This National Scenic Trail showcases the glacially sculpted landscape of Wisconsin with rolling hills and well-established trails. The event offers three ra..

The Kishwauketoe 5K Cross Country Run is a community-focused running event taking place in Williams Bay, Wisconsin. Participants can choose between a 5K run/walk and a children's 1/4 mile walk/run for ages 10 and under. The course features scenic grass trails through hills, woods, and prairie, with..

The Pinetum Mind Games Endurance Event, held at Lowell Park in Dixon, Illinois, is a unique endurance challenge featuring 6, 12, and 24-hour running or relay options. Participants run, walk, or crawl around a 0.411-mile loop known as the Pinetum, testing their mental toughness in a fun, supportive a..

The Chupacabra Trail Races take place in Dixon, Illinois, featuring night trail running on a 5-mile loop course composed of grass, gravel, dirt, and 30% single track. Participants can choose from distances of 5, 10, or 15 miles, or join a three-person relay team. The race starts just before sunset,..

The New Glarus Woods Trail Run is an annual event that celebrates outdoor fitness and community spirit, taking place in New Glarus, Wisconsin. This year marks the 6th edition of the run, which is part of the Savanna Trail Run Series. The event features multiple race options, including a 1 Mile Fun R..

Run The Hawk Trail Run takes place at the historic Blackhawk Ski Club in Middleton, Wisconsin. This endurance event features 3, 6, and 12-hour challenges where participants complete as many laps as possible on a scenic 2.25-mile loop with 345 feet of elevation gain per lap. The course includes diver..

The Gristmill Grind 10K is a challenging trail race held annually at Franklin Creek State Park in Franklin Grove, Illinois. Known as one of the most difficult 10Ks in the area, the course features technical trails with approximately 800 feet of elevation gain, multiple hills, and four creek crossing..

The Naperville Trails Half Marathon & 10K is an annual running event held in Wheaton, Illinois, at the scenic Danada Forest Preserve. Scheduled for September 6, 2025, the race offers both half marathon and 10K distances, including virtual options. The course is USATF certified, featuring a flat and..

Timely Nonsense is a unique timed running event held in Chicago, IL, at a 58-acre park located at California and Montrose. Participants run a 0.75-mile paved loop for either 6 or 12 hours, with an aid station at the start/finish offering typical ultra running fare and additional vendor treats like h..

Last Dot Standing is a unique endurance running event held at Belleville Community Park in Belleville, Wisconsin. Participants alternate running 4.2-mile legs between Belleville and Dot's Tavern, a historic local tavern, with one hour to complete each segment. The race continues hourly until only on..

The Tiger 10 Miler is an annual trail race held in Byron, Illinois, featuring a challenging 10-mile course through the scenic Byron Forest Preserve and Nardi Equine Prairie. Participants receive a custom finisher's medal, a race shirt, and have the chance to win awards in various age categories. The..

Half Day at the Lake is a unique 6- and 12-hour ultramarathon held in Evanston, Illinois, along a scenic 2-mile loop on Chicago’s north shore lakefront path. The course features paved and crushed gravel surfaces, passing through Evanston’s lakefront and Northwestern University’s campus, offering bea..

Hindsight Ultra Trail Runs, held in Dixon, Illinois, offers a grassroots ultra running experience with distances of 25K, 50K, 100K, and 100 miles. The course features a 7.85-mile loop combining roughly 50% singletrack, 30% grassy meadows, and 20% gravel paths, with about 6,200 feet of elevation gain..

The Trail Run at Indian Lake is an exciting running event held at Indian Lake County Park, featuring two course options: a long course of approximately 10.5 km and a short course of about 5.8 km. The event promotes sustainability by adopting a cup-free policy, encouraging participants to bring their..

The Lapham Peak Colorama Run/Walk is an annual fall running event held at Lapham Peak State Forest in Delafield, Wisconsin. Celebrating its 36th year in 2025, the event features 5K and 10K courses on wide, well-groomed ski and hiking trails, with the 5K covering the park's middle level and the 10K f..

Zachariah's Acres Fall Run, Walk & Roll is a charitable event taking place in Oconomowoc, WI, designed to support children with special needs. The event features a 5K, a half marathon, and a family-friendly walk and roll, all set against the backdrop of 125 acres of beautiful natural scenery. Partic..