National Rodeo Finals – Thu.

Zack Oakes, of Elk, Wash., is thrown from Hawaiian Ivory during the eighth go-round of bull riding at the National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. (AP Photo/Isaac Brekken) J.W. Harris, of May, Texas, rides War Zone during the eighth go-round of bull riding at the National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. (AP Photo/Isaac Brekken) B.J. Schumacher, of Hillsboro, Wis., rides Cactus during the eighth go-round of bull riding at the National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. (AP Photo/Isaac Brekken) Fred Whitfield, of Hockley, Texas, competes in the calf roping event during the eighth go-round of the National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. (AP Photo/Isaac Brekken) Billy Etbauer, of Edmond, Okla., competes during the eighth go-round of saddle bronc riding at the National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. (AP Photo/Isaac Brekken) Travis Tryan, of Billings, Mont., celebrates tying the world record in the team roping competition during the eighth go-round of the National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. Tryan and his partner Cory Petska finished in 3.5 seconds. (AP Photo/Isaac Brekken) K.C. Jones, of Decatur, Texas, competes in the steer wrestling during the eighth go-round of the National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. (AP Photo/Isaac Brekken) Lindsay Sears of Canada rides during the eighth go-round of the barrel racing competition at National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. Sears won the round and clinched the world championship with a time of 13.57 seconds. (AP Photo/Isaac Brekken) Royce Ford rides High Motion during the bareback riding event in the eighth go-round of the National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. (AP Photo/Isaac Brekken) Lindsay Sears, of Canada, rides during the eighth go-round of the barrel racing competition at National Finals Rodeo in Las Vegas, Thursday, Dec. 11, 2008. Sears won the round and clinched the world championship with a time of 13.57 seconds. (AP Photo/Isaac Brekken)