GREENSBORO, N.C. (AP) — Justin Dumais and Amy Cozad led their divisions Wednesday after the semifinal rounds in the U.S. national diving championships.

Dumais, from Orlando, Fla., had 436.20 points in the men's 3-meter springboard semifinals to lead the 12 qualifiers for the finals. He won the 2001 3-meter title in the event.

Bradley Christensen of Southlake, Texas, followed at 423.75, and Greg Ferrucci of Huntersville, N.C., was third at 423.15.

Dumais' younger brother, Olympic bronze medalist Troy Dumais, earned a bye into the finals by qualifying for the London Olympics.

Cozad, from Bloomington, Ind., 338.40 points in the women's 10-meter platform semifinals. Cheyenne Cousineau of Temperance, Mich., was second at 336.70, and Eszter Pryor of New Albany, Ohio, third at 330.15.