Tonight was a fitting finale to aged event classes at the 6666 National Reining Horse Association (NRHA) Derby presented by Markel. In its 45th edition, the show shattered records and paid out more money across the Open Derby levels than ever before. With such an impressive sum on the line, All Nite Partier and Cade McCutcheon secured the coveted $100,000 Level 4 Open Derby Champion’s check with a huge 231.5.