The world championships may have just ended but the form guide for the Olympic Games has already begun to shift shape. Comeback former world record holder Brendan Hansen (Havertown, Pa.) claimed the 100m breaststroke on the opening night of the 2011 ConocoPhillips USA Swimming National Championships in 1:00.08.

A journey ahead before that gets close to challenging Aled Dale One (NOR) but Hansen is a nation champion once more and on the move with almost a year to go to US OLympic trials, his effort leaving him ahead ofKevin Swander (Carmel, Ind.), 1:00.59, and Marcus Titus (Tucson, Ariz.), 1:00.82. "My whole goal this summer was to put myself in top ten in the world," said Hansen.

World champion  Dana Vollmer (Granbury, Texas) took the 100m butterfly in 57.26 ahead of Claire Donahue (Western Kentucky), 58.05, and Elaine Breeden (Lexington, Ky.), 58.60.

Matthew McLean (Sterling, Va.) took the 400m freestyle in 3:47.33 for a debut national crown ahead of Michael Klueh (Evansville, Ind.), 3:48.48, and Charlie Houchin (Raleigh, N.C.), 3:48.84.

World 400m medley champion Elizabeth Beisel (Saunderstown, R.I.) claimed domestic gold over 200m medley in 2:10.75 to 2:11.26 over Katie Hoff (Towson, Md.). Third went to Madeline Dirado (Stanford) in 2:11.92.

Beisel wasn't done yet. A maiden national title went to Ashley Steenvoorden (East Brunswick, N.J.) on 4:07.63 in the 400m freestyle ahead of Chloe Sutton (Mission Viejo, Calif.), 4:08.52, and Beisel on a roll with a 4:09.25.

Robert Margalis (St. Petersburg, Fla.) took the 400m medley in 4:15.61 ahead of Florida’s Conor Dwyer (Winnetka, Ill.), 4:15.97, and Tyler Harris (Richmond, Va.), on 4:18.48.