Trail Running calendar near Marshalltown 2026-2027

A timed 5k trail run or walk at Connorridge Farms in Oxford, Iowa, with a Virtual 5k option, prairie views, a prairie identification challenge, awards, and on-site finish line music.

Wildcat XC on August 8, 2026 in Janesville, Iowa includes a competitive 5K, a fun 5K, a family run, and a youth 1 mile race. Fees are $30 for the 5K and $15 for the kids mile and all proceeds support the Janesville CSD Cross Country program..

A community 6K run/walk in Springville, Iowa on August 8, 2026 with chip timing, age-group awards, and proceeds benefiting Springville Sports Boosters.

Trail events at Winterset City Park featuring a chip timed 5K that starts and finishes at the Stone Pedestrian Bridge and a free one mile kids run.

Backyard Ultra in Bussey IA with 4.167 mile laps each hour and a 12 hour cap, where the winner is the last runner to complete an extra lap.

A timed 4 hour and 8 hour trail endurance event on a 3.15 mile loop at Cedar Bend Park near Waverly, Iowa on September 5, 2026. Laps count only within the time limits and a main aid station serves the start and finish.

A rural ultra in Booneville, IA on Sep 5, 2026 offering 100-mile, 100K, 50K and 10K races over hilly country roads with newly marked ultra courses.

A multi-distance trail running event at Pleasant Creek Park on September 12, 2026, with participant packets, aid stations, and awards managed by a local trail nonprofit.

Experience the Iowa Trail Run Series at Jester Park featuring 5K, 10K, and 10 hour enduro options. Run along the shores of Saylorville Lake past buffalo enclosures on a mix of grass and dirt trails.

A 5k fun run at Reclaimed Rails Brewing Company in Bondurant with running, walking, or jogging and a post-run celebration, presented by the Iowa Brewery Running Series.

An off road 5 Miles obstacle course in Saint Charles, Iowa on September 26, 2026, hosted by Contributors Breakfast Club; the local fundraiser keeps proceeds in Iowa and lets participants help design several obstacles.

A backyard ultra at Lake Ahquabi where runners complete a 4.167 mile lap each hour until one runner completes one more lap than anyone else.

Trail race at George Wyth State Park near Waterloo IA offering 13K single loop and 25K two-loop courses with limited on course aid and post-race food.

An obstacle mud run at Camp Sacajawea on September 26 with one mile and three mile courses, waiver required, proceeds benefit Girl Scouts of Greater Iowa.

A non timed 1 mile and 3 mile walk and run around Hickory Grove Lake at Snow Bunting Lodge. The event raises funds for Chase Away K9 Cancer in memory of a Greater Swiss Mountain Dog named Remy and welcomes pets.

A chip timed 5K in Keystone, Iowa on 10/10/2026 where participants wear flag belts and encounter costumed zombies who try to pull flags. Proceeds support Keystone First Responders and Benton Girl's Wrestling.

Trail run and walk at Backbone State Park on October 10, 2026 with two route choices: a 4 mile loop and a 10K lake loop. Day of registration is available and proceeds support Backbone State Park.

A charity running event in Solon, Iowa featuring a timed 5K and a Monster Mile, with all proceeds to the Arthritis Foundation to support pediatric rheumatic disease awareness.

A community 5K run and walk at the Iowa Arboretum on October 10, 2026 supporting the Foundation for the BAHS, with packet pickup and dog friendly amenities.

A 48 hour endurance event in Cedar Falls with repeated 4 mile legs, individual and team relay options, on course meals, participant sweatshirts and finisher medals.