What’s Up in Ultra This Weekend — October 25, 2025

The third weekend of October features 70 North American ultramarathons on the UltraRunning Magazine race calendar. In this week’s What’s Up in Ultra, we highlight events in Utah, Wisconsin, Arizona, Massachusetts and Ontario, Canada. If you’re a race director and would like your event to be featured in the calendar, register here.

Featured: Canyonlands Ultra (Moab, UT)

Triple Crown of Moab series kicks off with the 2025 Canyonlands Ultra (100k, 50-mile and 50k). All events start and finish at the Behind the Rocks trail area and take runners on a tour of some of Moab’s best trails that highlight the area’s diverse red rock terrain. On trail, runners can expect a mix of technical double-track and sandy washes with expansive views of the La Sal Mountains and surrounding canyons. The 50k runners will attempt to navigate close to 3,000 feet of vert, while 100k and 50-mile participants will run multiple-loop courses featuring over 7,800 feet of climbing in the 100k, and over 5,200 feet in the 50-miler. Participants are invited to camp for free at the Mad Moose Base Camp. Read the full race guide here.

Other West Events:

Pacific

• Trail Run at Sly Park – Fall (Pollock Pines, CA)
• Pinkathon Challenge for Breast Cancer (San Francisco, CA)
• Range of Light Trail Races (Bishop, CA)
• Caspers Trail Races (San Juan Capistrano, CA)
• Weekend at Burney (Burney, CA)
• Peacock Challenge (Waialua, HI)
• Autumn Leaves 50/50 (St. Paul, OR)
• Día De Los Muertos Endurance Run (Newport, OR)
• Suttle Lake Trailfest (Sisters, OR)
• Carkeek 12 Hour (Seattle, WA)
• Cougar Mountain Trail Run Series (Bellevue, WA)
• Salt Creek 24 (PORT ANGELES, WA)
• Fall Freakin Fun Run (Kirkland, WA)

Mountain

• Bridge Burner Ultra (Canon City, CO)
• Trail of Terror (Las Vegas, NV)
• Naatsisaan Trail Ultra (Navajo Mountain, UT)

Featured: Door County Fall 50 (Sturgeon Bay, WI)

The Door County Fall 50 returns to Wisconsin for its 19^th edition. The 50-mile road ultra marathon (solo and relay races) begins at the top of the Door Peninsula between Green Bay and Lake Michigan and takes runners down the scenic western shoreline all the way to Sturgeon Bay. Race highlights include vibrant fall colors from golden maple, birch and aspen trees that line the course, running through Peninsula State Park with views of the bay, lighthouse and rocky cliffs, passing by quaint Wisconsin waterfront villages, amazing volunteers offering support and encouragement at the nine fully-stocked aid stations and a lively finish line celebration with free beer, wine, soda and pizza. Read more about the race here.

Other Midwest Events:

• • Equalizer Endurance Run (Des Moines, IA)
  • Yippee-Ki-Yay 50K (Council Bluffs, IA)
  • Fancy Nonsense 25k/50k (Willow Springs, IL)
  • McNotagain Fall Trail Runs (Pekin, IL)
  • Kansas Rails-to-Trails Extravaganza (Ottawa, KS)
  • Ozark Trail 100 Mile Endurance Run (Steelville, MO)
  • END-TRAILS 12-hour and 6-hour trail run (Arvilla, ND)
  • The Last Cowboy Backyard (O’Neill, NE)
  • Stone Steps (Cincinnati, OH)
  • Run With Scissors (Boston Twp, OH)
  • Scioto Miles Gravel Series (Chillicothe, OH)
  • Hixon 50 (La Crosse, WI)
  • Among the Trees (Dousman, WI)

Featured: Javelina Jundred (Fountain Hills, AZ)

The 23^rd annual Javelina Jundred takes place this weekend at McDowell Mountain Regional Park. As the OG costumed-themed 100-miler, Javelina is renowned for its fun atmosphere, epic dance parties, scenic desert trails and for attracting some of the best ultrarunners from around the globe to compete for their shot at  Golden Tickets into the 2026 Western States Endurance Run (WSER). The 100-milers will set off on Saturday in two waves starting at 6 a.m., and will attempt to complete one 22.3-mile loop plus four 19.45-mile loops totaling 6,296 feet of elevation gain and loss. Runners who finish in under 30 hours will earn their 2026 WSER qualifiers, with the top two male and female finishers earning automatic bids into next summer’s race. In addition to the 100-mile event, Javelina also hosts a 100k and the festive Jackass 31k night run. Follow all the action on the Mountain Outpost live stream. Read more about the race here.

Other South Events:

Southwest

• Day of the Dead Series (Las Cruces, NM)
• Lake Murray Endurance Run (Ardmore, OK)
• Cactus Rose (Bandera, TX)
• SARR Rocky Horror Trail Run (San Antonio, TX)
• Last Man Standing (Lumberton, TX)
• Fields of Gold 50K (Marble Falls, TX)

Southeast

• The Endless Mile (Alabaster, AL)
• Hare Mountain 100 (Clarksville, AR)
• Jack’s Trail Race (Palm Coast, FL)
• Gate2Gate 50k (Alachua, FL)
• Pumpkin Butt (Kennesaw, GA)
• Georgia Sky to Summit (Dillard, GA)
• Thriller Lake (Dacula, GA)
• Mountain Mama Farms Classic (Summerville, GA)
• No Business 100 (Pickett Archaeology Museum, KY)
• Mammoth Cave 50K/25K (Mammoth Cave, KY)
• Patapsco Valley 50K (Baltimore, MD)
• Triple Lakes Trail Race (Greensboro, NC)
• Fonta Flora 50k (Nebo, NC)
• Sandhills Running Sasquatch Challange (Aberdeen, NC)
• Sadlers Creek Stumble (Anderson, SC)
• Firewater (Greenback, TN)
• PB&J 50K (Prince William Forest, VA)
• Andy’s Backyard Ultra (Earlysville, VA)
• Greensprings 24 (Williamsburg, VA)
• Rim to River 100 (New River Gorge, WV)

Featured: Womp Romp (Hingham, MA)

The Womp Romp is back for its fifth season at the 3,526-acre Wompatuck State Park, just 35 minutes outside of Boston. The community-oriented event features a 50k ultramarathon as well as a 10-mile race. The 50k participants will have 9 hours to complete a three-loop course on a mixture of single-track, double-track and pavement, while enjoying the late October Massachusetts fall foliage and having support from three aid stations. Race proceeds are donated to charitable partners, including Friends of Wompatuck, Free to Run and Footprints Trail Camp. Read more.

Other Northeast Events:

• Big Brad Ultras (Pownal, ME)
• WXT Ultra Trail Races (Hopewell Township, NJ)
• Hot Mess Trail Races (Pittsgrove, NJ)
• Mendon Trail Run (Mendon, NY)
• Summit 50/50 (Salamanca, NY)
• Tussey Mountainback (Boalsburg, PA)
• Camp Lackawanna Trail challenge (Tunkhannock, PA)
• EHOHx12 Challenge (Wayne, PA)

Featured: The Bad Thing (Goderich, ON)

The ninth running of The Bad Thing trail race kicks off on Saturday, October 25, in Huron County, Ontario. Runners in the 50k race will run a point-to-point course that begins in Goderich and ends at the Auburn Riverside Retreat. Along the way, participants will follow the scenic Maitland Trail through Falls Reserve Conservation Area, where they’ll have to navigate 60% highly technical and challenging single-track trails, rocky and rooty double-track terrain, a few short road sections and close to 1,500 meters of climbs and descents. Runners will set off at 7 a.m. and have until 4 p.m. (9 hours) to earn an official finish. Read the 2025 The Bad Thing race guide here.

Other Events in Canada and Mexico:

• Moonshine Backyard Ultra (Arnstein, ON)
• Copper Canyons Endurance Runs (Cerocahui, Chihuahua)

Email corys@ultrarunning with questions about adding your event to the UltraRunning Magazine calendar.