2026 6666 NRHA Derby presented by Markel & Adequan NAAC | OKC Fairgrounds | June 10–21
Congratulations
Wed. June 10
2024 Level 4 Open Champions: Cade McCutcheon & All Nite Partier
2024 Level 4 Non Pro Co-Champions: Kim Muehlstaetter & Smoky Mountain Rein and Gina Schumacher & Gunin Addy Tude
Adequan Arena: AQHA Open/Amateur, APHA Open/Amateur, Section 1

2025 Leader Runs
2024 Champions
L4 Open: Cade McCutcheon & All Nite Partier
Level 3 Open Champions: Martin Muehlstaetter & Good Time To Trashya
Latest News
Build Your Edge: NRHyA Seminar with Performance Coach Gil Friedman
June 2, 2026: Youth reiners headed to the 6666 NRHA Derby Presented by Markel have a chance to sharpen a skill that sets great riders apart—their mindset. If you are working to enhance…
NRHA Announces $150,000 Increase to 2026 NRHA Derby® 4-Year-Old Stakes
April 26, 2026: Total added money surpasses $300,000 with expanded divisions across all levels The National Reining Horse Association (NRHA) has announced a significant expansion to the 2026 NRHA Derby 4-Year-Old Stakes, adding $150,000…
6666 NRHA Derby Presented by Markel Buckle Sponsorship and Division Donor Opportunities – Deadline is May 1st
April 24, 2026: NRHA buckles are now available for sponsorship at the 2026 NRHA 6666 Derby Presented by Markel. Sponsorships range from $750 to $950 and include your ranch or company name engraved…
Postponed 2025 NAAC to Be Held During the 2026 6666 NRHA Derby Presented by Markel | June 8–21, 2026
December 12, 2025: The National Reining Horse Association announces that the 2025 Adequan® North American Affiliate Championships (NAAC), postponed due to concerns with the equine herpesvirus (EHV), will be conducted in conjunction with…
Save the date: June 14–27, 2027 // June 12–25, 2028






