Michael Phelps and Jessica Hardy helped the US men's and women's teams set short-course world records in the 4x100-meter medley relays at the Duel in the Pool Friday. The American men clocked 3 minutes, 20.71 seconds to beat a European all-star team at Manchester Aquatics Center. Phelps swam the third leg and was joined by Nick Thoman, Mark Gangloff and Nathan Adrian. They broke the mark of 3:23.33 set by Canada in August. Hardy swam the second leg for the women, and teammates Margaret Hoelzer, Dana Volmer and Amanda Weir set the mark in 3:47.97 to break another of Canada's records this year, 3:49.45. Hardy served a one-year ban after testing positive for the anabolic agent clenbuterol before the Beijing Olympics. Two more world records were set by American swimmers. Julia Smit broke the short-course mark in the 400 individual medley in 4:21.04, surpassing 4:22.88 set by Kathryn Meaklim of South Africa last month. Shortly after, Rebecca Soni broke the record in the 200 breaststroke. The Olympic champion clocked 2:14.57, breaking the 2:15.42 set by Leisel Jones of Australia in November. Soni was wearing one of the high-tech suits that will be outlawed on Jan. 1. Phelps continued to wear old-style, textile knee-length suits. In the 100 freestyle, the 14-time Olympic champion had to settle with a third-place finish. Compatriot Nathan Adrian won the race, followed by Italy's Marco Orsi. Both were wearing the polyurethane performance