The Pac-12 freshman of the year last season, Rice averaged 14.8 points, 3.8 assists, 3.1 rebounds and 1.6 steals per game last season for the Cougars.
Rice was named first-team All-Pac 12 and scored in double figures 27 times. He also won Pac-12 freshman of the week seven times.
A native of Columbia, South Carolina, Rice entered the transfer portal after Kyle Smith took the Stanford job. Rice was a major driving force in Washington State winning 27 games and reaching the NCAA tournament for the first time in 16 seasons.
Out of high school, Rice was ranked just the 227th best prospect in the country by the 247Composite.