Complex sentence: The Cougars tallied a perfect clip against league opponents to win the Mountain West Conference championship, winning on the final play of the game at Utah before going on to a decisive win against Oregon, 38-8, in the Pioneer PureVision Las Vegas Bowl.
Split into simpler sentences: The Cougars tallied a perfect clip against league opponents to win the Mountain West Conference championship, winning on the final play of the game at Utah. They decisively defeated Oregon, 38-8, in the Pioneer PureVision Las Vegas Bowl.