- Date
- July 11, 2026
- Location
- 41st Street Plaza at Riverside, 41st & Riverside Dr, Tulsa, Oklahoma
- Distances
- 100 Mile, 50 Mile, 50K, 10.5 Mile, and 5K Ultra (3.2 mi)
- Start times
- 100M: first 50 miles anytime after 6:00 AM Sat (GPS/Strava self-verified), second 50 with everyone at 11:59 PM Sat · 50M, 50K & 10.5M: 11:59 PM Sat · 5K Ultra: 12:05 AM Sun
- Finish guidance
- All runners should be finished by 2:00 PM Sunday afternoon
- Course
- Asphalt RiverParks trail along the Arkansas River; the primary 10.5-mile loop runs south to 71st Street past Turkey Mountain, then north across the Williams Crossing pedestrian bridge, repeated for distance
- Aid stations
- Turkey Mountain lower parking lot (6850 S Elwood Ave), start/finish at 41st Street Plaza, and an unmanned stop at the West Bank Soccer Complex
- Organizer
- Activate Oklahoma, which describes "generous time limits" built for walkers, hikers, and runners of every speed
These facts come from the official midnightmadness.run site. Distance-specific cutoffs and entry fees were not published on the main event page at the time of writing, so confirm both directly before you register.