Delphine Dah, Dominique Mustin, Jayde Charlton and Jadyn Mays helped North Canyon set the all-time state record in the Division 2 girls 4x400-meter relay final by clocking 3:46.07 at the Arizona Interscholastic Association State Championships at Mesa Community College. North Canyon improved on the 3:46.14 effort set last year by Chandler.