The Cougars were overall in the regular season and in conference play , last in the The sole Pac-10 victory was by one point over USC on and the season 's last win was on At the conference tournament , the Cougars met seventh seed USC in the first round and lost by seventeen points , ending the season on an eighteen-game losing streak
conference tournament
1990 Pacific-10 Conference Men's Basketball Tournament
1989–90 Washington State Cougars men's basketball team