Why the Buffs lost: Too many fouls and too many turnovers. CU was whistled for 23 fouls and had 21 turnovers. Oklahoma State had 11 of each. OSU scored 27 points off CU turnovers and went 21-of-28 from the free throw line.

Three stars

1. OSU’s Stailee Heard: Finished with 26 points, seven rebounds and two steals in 39 minutes.

2. CU’s Ayianna Johnson: Tied her career high with 20 points, hitting 7-of-9 field goals and a career-best 6-of-7 from the line in only 15 minutes.

3. CU’s Jade Masogayo: Limited to just 11 minutes because of foul trouble but was dominant in those minutes, with 14 points and five rebounds.

Up next: The Buffs return home to host Arizona State on Wednesday (7 p.m., ESPN+) at the CU Events Center.