Trail Running Calendar United States 2026-2027

A holiday run in downtown Dunedin on December 19, 2026 featuring 5K 10K and 15K routes on the Pinellas Trail with electronic timing finisher medals shirts and a post race beer option for those 21 and over.

A night trail run at Zindel Park in McElhattan, PA on December 19, 2026, offering a 7 mile and a 5K course on local trails. Headlamps are required and registration opens July 19, 2026.

Trail races around Perry Lake in Ozawkie, KS on December 19, 2026, with distances from 25K up to 125Mile. The course is divided into five marked sections and includes several manned aid stations and varied terrain.

Frozen Yeti at Monte Sano State Park on December 19, 2026 features 5 and 10 mile trail races with aid stations, a cupless policy, and a 400 runner cap. It is the first race in the Winter Wild Thangs Trail Series.

An elite track ultrarunning meet in Phoenix on December 19-20, 2026 focused on 24 hour and 100 mile performances. Entry is by invitation or qualification and the event features live timing and prize money.

A trail half marathon of about 13.5 miles at John Bryan State Park in Yellow Springs, Ohio. ORRRC members run free; non-members ages 15+ pay $10. The race uses timing chips, aid stations, and relies on volunteer support.

A holiday themed event in Antioch featuring a scenic 5K run or walk, a virtual 5K option, and a 1K kids run at Orchard Bend Park. Proceeds benefit The Nashville Food Project and park restrooms will be closed for winter.

Celebrate the season at this Christmas themed event in Kansas City. Participants can choose from 15K, 10K, 5K, and youth distances while receiving custom medals and designer shirts.

A forest loop at Seward Park on December 19, 2026, offering **4.2-mile** and **10k** trail distances, an aid station, and a Glitter, Glamour, and the Galaxy costume contest as part of the Winter Trail Series.

An eight hour elimination ultrarace in Molena, GA on December 19, 2026 where runners must complete a 4 mile loop with 1000 feet of gain each hour or be cut, earn prizes after each lap, and compete for the fastest final lap.

Reindeer Run at Griffith Park on December 19, 2026 offers 5k, 10k, 15k and half marathon routes on a shared hard packed dirt trail with an aid station, finisher medals, photos, live results and event app features.

A winter trail series in Santa Fe with races on the third Saturday of December, January and February. Entry fees support Commonweal Conservancy and a noncompetitive virtual option offers a finishers award.

A multi-format event at Lake Wailes Park on December 19, 2026, offering a 4.17 mile loop, 6 hour and 12 hour timed races, and a 12 hour relay for teams up to five, with aid stations, awards, participant shirts, and food at the Runners Villa..

River Bluff Trail Runs on December 19, 2026 in St. Joseph, Missouri offers 50k, 25k and 10k options on marked trails along the Missouri River bluffs with looped routes, aid stations, and significant elevation gain.

Forest and ridge single-track runs in Woodside, California with 10K, half, 35K and 50K options, chip timing, aid stations, and cupless hydration requirements.

Trail races on Lookout Mountain feature 50 mile, 18 mile and 10K courses on single track trails, creek crossings and views that include Lula Falls and exposed bluffs.

A winter trail series at Rockwoods Reservation near Glencoe, Missouri across three dates from Dec 19, 2026 to Feb 13, 2027. Events range from 4 miles and 8K up to a half marathon with finisher medals, shirts, chip timing and live tracking.

An invitation-only, no-fee 100-mile loop race in Titusville on December 19–20, 2026, run as 29 laps of a 3.46-mile trail loop with varied surfaces and a 32-hour time limit; entries are drawn from a June wait list and the field is capped at..

Holiday race at McAllister Park with a Kids Dash, 1-mile, chip timed 5K and 10K, virtual option, costume contest, and finishers receiving a shirt and medal.

Dirty December Trail Run in San Diego on December 20, 2026 offers marathon, half marathon, 10K and a six hour hill climb on a 2.5 mile loop. The event includes solo and team costume awards plus King and Queen of the hill honors.