Kansas City Backyard Ultra

AUG
7-9
2026
Backyard Ultra at Mill Creek Park in Kansas City features the Last Runner Standing plus 3, 6, 9 and 12 hour timed events on a 1-mile looped trail.
7-9 Aug 2026

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Kansas City Backyard Ultra

Kansas City Backyard Ultra is a Last Runner Standing event held in Mill Creek Park on the Country Club Plaza in Kansas City, MO. The start/finish area is at the J.C. Nichols Memorial Fountain and the course uses the Mill Creek Park Trail.

The Backyard Ultra format requires runners to complete a one-loop unit each hour. At this event one loop equals four 1-mile laps on the trail, and runners have one hour to finish the loop and be inside the start corral to begin the next. A whistle and verbal countdown protocol signals each loop start; a cowbell marks the START. Timed events run in the opposite direction of the Last Runner Standing participants.

Key rules and services:

  • Once a loop starts, runners may not receive aid on course or return to race HQ until the loop is complete.
  • Artificial aids, including trekking poles, are not allowed.
  • Runners may have up to two crew members and a small chair area near the start/finish.
  • Restrooms are available and a primary aid station is available each mile with water, ice, food, and Heed electrolyte drink.
  • Runners are responsible for their own aid; water and coffee are provided for runners only.

Participant items and results: Last Runner Standing entrants receive a folding chair; all runners receive a buff, cinch-tie bag, and a finisher sticker showing total miles. Individual finishing mileage will be recorded as accumulated miles rather than listing a DNF. No refunds or deferrals are offered. Visit the organization's website for the most recent information.

12hrs
3hrs
6hrs
9hrs
Last Runner Standing

Events nearby

A trail 5K at Kill Creek Park with separate youth and standard entries, packet pick-up in Shawnee and Olathe, and age-group awards for top finishers.
September 26, 2026 trail event in Kansas City offering 50k, 25k and 12k on mostly single track loop trails with post race food and swag.
Trail races at Shawnee Mission Park offering 10M, 20M, 40M, and 50 Miler options with marked trails, cupless aid stations, and a backup course.
A roughly 10K trail race in Olathe on October 17 2026, organized by Team Sparkle with clock timing, cupless water aid, and a $50 entry that donates $5 to Urban Trail Co.
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