SAN DIEGO — BYU leads Wyoming 10-0 at halftime in a rainy and sloppy Poinsettia Bowl.
Jamaal Williams already has 121 yards, breaking a school record for 100-yard games.
The Cowboys have been hampered by special teams mistakes. BYU scored first after Wyoming punter Ethan Wood dropped the snap at the Cowboys' 3-yard line.
Tanner Mangum ran the ball in two plays later after dropping back to pass. He has completed 3 of 8 passes for 19 yards.
Wyoming missed out on three points after the place kick holder fumbled the snap in the second half.