After just one season in Fayetteville, Robinson once again opted to enter the transfer portal and this time landed with Mark Pope at BYU joining the Cougars for its final season in the West Coast Conference.

In his debut season at BYU, Robinson began to break out as he played in 33 games, started 30, and on the year averaged 8.5 points per game, 2.9 rebounds, and 1.8 assists while shooting 38.6 percent from the field, 34.3 percent from three and 68.0 percent from the free throw line.

He matched a season-high 17 points in both a win over Pacific and a loss to Gonzaga, scored 16 points in a loss to USC, scored 13 points and grabbed a season-high eight rebounds in a WCC Tournament win over Loyola Marymount, and scored 15 points, draining five three-pointers in a victory over Westminster.

Robinson had his best year yet this past season in BYU’s debut season in the Big 12.

The 6-foot-7 guard played in 33 games but started just six, serving as the Cougar’s sixth man. He wound up leading the team in scoring, averaging 14.2 points per game, 2.5 rebounds, 1.3 assists, and 0.7 steals while shooting a career-best 42.6 percent from the field, 35.4 percent from three and 90.8 percent from the free throw line.

Robinson saved some of his best performances for the biggest moments.
He scored 18 points and knocked down four threes in a road win at Kansas, scored 23 and grabbed four rebounds in a win over an NC State team that wound up reaching the Final Four, scored 18 points and grabbed five rebounds in a Big 12 Tournament loss to Texas Tech and went for 25 points and drilled five threes in the Cougars NCAA Tournament loss to Duquesne. 

His season-high was 28 points scored in a win over Denver in which he shot 8-for-16 from three and dished four assists.

The year earned Robinson Big 12 Sixth-Man of the Year Award honors as he helped lead BYU to a 10-8 Big 12 record, good for fifth place in the league and earn a No. 6 seed in the NCAA Tournament in Pope’s final season in Provo.