As a freshman, Costello appeared in 30 games, averaging 6.1 minutes,1.5 points and 1.3 rebounds, shooting .469 from the field. His .824 free-throw percentage (14-17) was tops on the team. He ranked fourth on the team with 13 blocks, averaging a block every 14.2 minutes. Playing time increased when he averaged 8.0 minutes in the last 13 games after playing more than eight minutes just once in the first 23 games. Costello turned in one of his best games in a 75-52 win over No. 4 Michigan(2/12), scoring a season-high eight points and grabbing a Big Ten season-high six rebounds, hitting all three field
Junior YearCostello appeared in 39 games, starting six, averaging 7.0 points and 5.0 rebounds in 20.4 minutes. He shot .579 from the floor, ranking second among teammates with more than 100 field-goal attempts. Costello ranked 13th in the Big Ten in blocked shots overall (1.2 bpg) and seventh in Big Ten games (1.5 bpg). His 48 blocks rank as the seventh-best single-season total in MSU history. Costello managed to score in double figures in 11 games and grabbed double-figure rebounds in two contests. He posted two double-doubles vs. Loyola (11/21; 13 points, 11 rebounds) and Texas Southern (12/20; 17 pts., 10 reb.). Costello was a team leader in many categories and led MSU in scoring in two games and in rebounding in eight contests.
Senior year, During Costello's senior year, he made many improvements to his game. Because of this, he received many end of the year awards. He is currently Michigan State's all time leader in blocks. Costello was honored with a selection to the Reese's College All-Star game in Houston, Texas.
* CBS-BigTen 2nd Tea
* BigTen 2nd Team Media
* BigTen 3rd Team Coaches
* Bleacher Report Team of the Week;
* Sports Illustrated- All Glue Team (Captain)
* Reese's College All Star Game
* Portsmouth Invitational Tournament
* PIT All-Tournament Team
Now Matt is a member of the Orlando Magic