Williams Bay
Trail Running Calendar near Williams Bay 2026-2027
Explore the top trail runs near Williams Bay for 2026-2027! We've gathered 21 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
A mud obstacle event on August 29, 2026 at Richardson Adventure Farm offering 5K, 15K, timed Infinity laps, Mudder Village, and finisher rewards.
September 2026
A 136 mile trail ultramarathon in Whitewater Wisconsin along the Ice Age State Trail with nine stocked aid stations and about 11,148 feet of elevation gain.
A 10th annual farm-based 5k trail run and family day in Fort Atkinson, WI supporting A-T research with in-person and virtual participation options.
Backyard Nonsense on September 26, 2026 at Richard Bong State Recreation Area offers 24 hour and shorter timed trail races, including a Backyard 12 loop format.
October 2026
Trail events at Rock River Heritage County Park on October 3, 2026 include a timed 5K with chip timing and a guided 2.4 mile walk, plus a park celebration with music, food trucks, tastings, and raffles.
Nature-based out-and-back event in Roscoe, IL offering a 5K run or 2 mile walk on mixed gravel and crushed limestone, starting at Roscoe Middle School and passing a water station twice.
Trail race in Crystal Lake on October 17, 2026 with 5 and 10 mile courses through Veteran Acres and Sternes Woods, race shirt and finisher medal included.
Oct 18, 2026 in Spring Grove: run through a corn maze and farm with 10K, 5K including a 250 turn maze option and a 1 mile Family Adventure, plus finisher medals.
November 2026
A multi-distance trail event in Southern Kettle Moraine State Forest offering ultra distances, a 50K and a 15K Fun Run, with aid stations, pacing rules, finisher awards, and proceeds funding forest projects.
A community running event in Fort Atkinson offering a 12k trail-road course, a 5k neighborhood run, and a 1 mile walk/run with proceeds supporting local and international projects.
On 11/14/2026 the Abominable Trail Race at Lake Geneva Ziplines & Adventures offers 5K, 10K, 15K and 30K courses plus 2, 3 or 4 person 30K relays on forest trails, with water stations, race shirt, finisher medal and free action photos.
December 2026
A dog friendly Canicross event in Lake Geneva with a technical 4 mile loop and an option to run two loops for 8 miles, organized by TYDISH Running.
January 2027
Winter trail race in Crystal Lake with a hilly single-track 10K loop and a 50K made of five laps, staffed aid stations, finisher medals, and age-group awards.
A winter obstacle race at Lake Geneva Ziplines & Adventures on January 30, 2027 offering distances from a kids loop to a 20K Yeti Challenge; fun heats allow optional obstacles while a competitive division awards cash prizes. All in-person finishers r..
April 2027
Trail races in Crystal Lake, Illinois offering 50k, 15 mile and 5 mile distances on a 5.2 mile loop through single track, prairie and pine forest.
July 2027
A community 5K run and walk at Kishwauketoe Nature Conservancy featuring a quarter mile kids race, local sponsors, and volunteer support.