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The second weekend of June features 48 North American ultramarathons on the UltraRunning Magazine race calendar. In this week’s What’s Up in Ultra, we spotlight events in California, Wisconsin, Virginia, Pennsylvania and Alberta, Canada. If you’re a race director and would like your event to be featured in the calendar, register here.
Featured: Tahoe 200 Endurance Run (Stateline, NV)
Friday, June 12, 2026, marks the 10th running of the Tahoe 200 Endurance Run. This year’s participants will experience the full 200-mile, single-loop course, which circumnavigates the beautiful deep blue waters of Lake Tahoe via the iconic Tahoe Rim Trail (TRT). Runners will set off from Heavenly Stagecoach Lodge in Stateline, Nevada, and have 105 hours (four days and 9 hours) to complete the loop and earn their Tahoe 200 buckles. Along the way, they’ll navigate just over 32,000 feet of elevation gain and loss, with support from 12 full aid stations and three sleep stations. Read the 2026 Tahoe 200 runner manual.
Other West Events:
Pacific
- Holcomb Valley trail Run (Big Bear Lake, CA)
- Cool Moon Trail Runs (Cool, CA)
- Tahoe 100k (Lake Tahoe, CA)
- SF Half Day (San Francisco, CA)
- Bay Area 100 (Oakland, CA)
- McKenzie River Trail Run (Blue River, OR)
- Mary’s Peak Trail Run (Blodgett, OR)
- Kaniksu Trail Runs (Frater Lake, WA)
- Gulch Countdown (Mukilteo, WA)
Mountain
- Barr Lake (Brighton, CO)
- Boom or Bust Ultra Trail Run (Pioche, NV)
- Snow Peaks 50 Mile Trail Run (Provo, UT)
- Sinks Canyon Trail Races (Lander, WY)
Featured: Kettle Moraine 100 (La Grange, WI)
A new addition to UltraRunning Magazine’s list of Old School Ultras, the Kettle Moraine 100 Endurance Trail Races returns to La Grange, Wisconsin, this weekend. Established in 1996, the classic event hosts one of the oldest 100-milers in the United States and has earned a reputation for its scenic course, run entirely on trails, including 65 miles on the iconic Ice Age Trail, supportive volunteers and old-school race vibe. The 100-mile runners have 30 hours to navigate a course with 8,800 feet of climbs and descents to earn their Kettle Moraine 100 buckles and 2027 Western States qualifiers. In addition to the 100-miler, the race also features 100k, 50k and 38-mile ultras. Read more on the race website.
Other Midwest Events:
- Yellowbrick Backyard Ultra (Peoria, IL)
- Heat Wave 6/12/24 (ROSE HILL, KS)
- Dances with Dirt – Hell, MI (Gregory, MI)
- Summer Trailfest Ultra (Laingsburg, MI)
- Thunderbird Warrior Challenge (Bayfield, WI)
Featured: OSS/CIA (Triangle, VA)
First run in 2012, the OSS/CIA 50 Mile Night Run is a unique event that blends history, trail running and a little intrigue. The 50-mile ultramarathon takes place in Prince William Forest Park, a National Park Service site in Prince William County, Virginia, and the primary training grounds for spies in the Office of Strategic Services (OSS), known today as the Central Intelligence Agency (CIA). The race begins at 6 p.m. on Saturday, and runners will have 14.5 hours to tackle two 25.5-mile loops run primarily on single-track trails and fire roads. Read more on the OSS/CIA 50 website.
Other South Events:
Southwest
- Hypnosis Night Runs (Goodyear, AZ)
- Fire Trail Running Festival (Spring Branch, TX)
Southeast
- The Last Annual Heart of the South Road Race (Bryant, AL)
- Cotter Bridge Ultra (Cotter, AR)
- Wings of the West Urban Ultra (Deltona, FL)
- Last Stand Army Backyard Ultra (Midlothian, VA)
- Woodbooger 100 (Norton, VA)
Featured: Laurel Highlands (Ohiopyle, PA)
Another worthy member of UltraRunning Magazine’s list of Old School Ultras, Laurel Highlands is back for its remarkable 47th season. The main event, the 70.5-mile ultramarathon, kicks off at 5:30 a.m. on Saturday, June 13, in Ohiopyle, and takes runners on a point-to-point course that covers the entire length of the Laurel Highlands Hiking Trail to the finish line in Seward. Along the way, they’ll be challenged by rugged sections of trail, steep climbs and descents, and close to 9,000 feet of elevation gain. Runners have 20 hours to complete the race and earn their Western States qualifiers. In addition to the 70-miler, Laurel Highlands will also host the 21st running of its 50k race. Read more.
Other Northeast Events:
- Ansonia Six Hour Trail Run (Ansonia, CT)
- Edge Hill Trail Race (Ashfield, MA)
- Flat Rock Trail Race (Dunstable, MA)
- Otter Pond Trail Races (Standish, ME)
- Table Rock Trail Challenge (Jamesville, NY)
- Sri Chinmoy 12 & 24 Hour Races (Congers, NY)
- Little Bitty Backyard (Emmaus, PA)
- Last Human Standing – RI (West Greenwich, RI)
- 4x4x48 Challenge – Vermont (Burlington, VT)
Featured: North Sun Ultra (Edmonton, AB)
The fifth running of the North Sun Ultra 50k ultramarathon takes place on Saturday, June 13, in Edmonton, Alberta, Canada. The race showcases Edmonton’s River Valley single-track trail system, where runners will traverse the east side trails in Gold Bar, over to Terwillegar, and then back to the finish line in downtown Edmonton. The course features 90% single-track trails, including a combination of fast, runnable sections and challenging technical and rooty segments. All proceeds benefit local community organizations. Read more.
Other Events in Canada & Mexico:
- Survivorfest (Sherwood Park, AB)
- Hidden Oasis Ultra (Cypress Hills Interprovincial Park, AB)
- Dirty Feet Backyard Buzzer! Backyard Ultra (Kamloops, BC)
- Dirty Feet Beat the Buzzer (Kamloops, BC)
- The Long Run Backyard Ultra (Riverview, NB)
- Rainbow Trail Run (Alliston, ON)
- Boomerang Trail Run (Batawa, ON)
- Notos Ultra Trail (Victoriaville, QC)
- Ultra Obscura (Sutton, QC)
Email corys@ultrarunning with questions about adding your event to the UltraRunning Magazine calendar.