Championships on Saturday after beating former champion Dexter Smith 21-18, 22-20, 17-21, 21-18 in the best-of-five final at Elliott School gym.

However, new champions were crowned in the doubles where defending champions Frost and Monique Ternier lost to Cory Berkeley and Hasan Durham in the final 21-17, 21-12, 21-19.

The singles produced the biggest upsets, starting with the opening round where Myron Piper upset Rawle Frederick 21-19, 21-18. The top four seeds, Frost, Hasan Durham, Dexter Smith and Rudolph Spence in that order, all had byes in the opening round.

Mike Lindo made Durham's participation in the championships short and not-so-sweet when he stopped him in the second round 21-16, 21-10. Frost and Dexter Smith advanced with victories over Kacy King and Monique Ternier respectively 21-14, 21-16 and 22-20, 21-19. Berkeley showed fourth-ranked Spence the door by beating him 21-18, 21-10.

Matches went according to form in the third round where Frost beat Dennis Pearman 21-12, 21-12, Berkeley got by veteran Mansfield Smith 21-19, 29-27 after a series of deuces in the second set when Smith stubbornly staved off defeat. In other third round matches Dexter Smith beat Jamel Warren 21-15, 21-8 and Phillip Hackett came from behind to deny Lindo another upset, beating him 22-24, 21-12, 21-11.

Frost and Dexter Smith advanced to the final with victories over Berkeley and Hackett in the semi-finals and Frost extended his unbeaten run for the season with a four-set victory over Smith who last won the national championships in 1993.

Frost and partner Ternier came within one match of defending their doubles titles, losing 21-17, 21-12, 21-19 to Berkeley and Durham in the final. That was the bright spot in an otherwise disappointing day for Durham who was also upset in the consolation final by Mike Daniels 21-18, 21-17.