Flower Moon

MAY
16
2026
The Flower Moon event offers a range of distances from a 5K to a 50-mile ultramarathon, with traditional and "ruck" variants. It takes place in Bartlesville, Oklahoma, in mid-May 2026. The event includes family-friendly discounts and volunteer incentives.
Sat 16 May 2026
50 miles 26 miles 13 miles 5 kilometers

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Event Overview

The Flower Moon running event offers several race distances and a "ruck" variant where participants carry a weighted pack. The event takes place on Saturday, May 16, 2026, in Bartlesville, Oklahoma. The start address is 216 County Rd 2427.

Available Distances

The event features the following race options:

  • 50 Mile Ruck
  • 50 Miler
  • 26.2 Mile Marathon
  • 26.2 Mile Marathon Ruck
  • 13.1 Mile Half Marathon Ruck
  • 13.1 Mile Half Marathon
  • 5K
  • 5K Ruck

Registration and Policies

Registration closes on Monday, May 11, 2026. Participants receive free race photography with their registration. The event organizer offers several policies. A military discount of 10% is available for active-duty personnel and veterans. A child discount allows one child (15 and under) to enter free with a paid parent registration for the same or a shorter distance. Volunteers who work a shift can receive a 25% discount on a future race entry.

Runners may switch to a different distance before their race starts, but cannot "drop down" to a shorter distance after starting. Official rules prohibit littering, stashing supplies on the course, and accepting rides during the race. Dogs are permitted if leashed. Trekking poles are allowed. Running is not required; participants may walk or hike.

No refunds are given, but a credit for a future event may be issued if a runner cannot participate. The credit amount depends on how many days before the event the request is made. Visit the organization's website for the most recent information.

50 mi
50 Miler
50 mi
50 Mile Ruck
26 mi
Marathon
26 mi
Marathon Ruck
13 mi
Half Marathon Ruck
13 mi
1/2 Marathon
5 km
5k Ruck
5 km