Four U.S. women wrestlers claimed medals at the Clansman International Open, held at Burnaby Mountain, B.C., Canada, Nov. 11.    Claiming silver medals were Bior Guigni (Preston, Conn./Menlo College) at 51 kg/112.25 pounds and Kaci Lyle (Eureka, Calif./Pacific Univ.) at 68 kg/149.75 pounds.    Guigni won her first two matches, an 8-0 win over Desi Lockhart of Pacific and an 11-7 win over Kathlete Takeda of Simon Fraser. She was defeated in the finals by Shannon Briginshaw of Simon Fraser, 9-1.    Lyle dominated her first two opponents, scoring a 13-2 technical fall over Ashlea McManus of Simon Fraser and a pin over Tonya Yanish of the Rebels. In the finals, Lyle dropped an 11-1 technical fall to Shannon Samler of Simon Fraser.    U.S. wrestlers claiming bronze medals were Kristen Fujioka (Kaneohe, Hawaii/Pacific Univ.) at 46 kg/101.25 lbs. and Danielle Hobeika (Cambridge, Mass./Menlo College) at 51 kg/112.25 pounds. Fukioka had a 2-1 record in the tournament, and Hobeika had a 2-2 record in the competition.    Placing fourth was Tela O'Donnell (Homer, Alaska/Pacific Univ.) at 56 kg/123.25 lbs. O'Donnell had a 2-2 record in the meet, including a 12-2 loss in her final match to Melissa Kindrasky of UCWC.