6.5 assists per game. Collier suffered a meniscus injury in his knee while participating in workouts with the United States under-18 basketball team in May 2022, which caused him to miss the rest of the EYBL circuit. He participated in the Curry Camp and was named the camp's MVP.

Collier for his senior year averaged 19.6 points, 6.8 assists, 5.5 rebounds, and 2.2 steals while shooting 52 percent from inside the arc, 38 percent from 3-point range, and 77 percent