Matt Costello

Matthew Tyler Costello (born August 5, 1993) is an American-born naturalized Ivorian professional basketball player for the Chiba Jets of the Japanese B.League. He played college basketball for Michigan State.

High school career Costello was heavily recruited coming out of Bay City Western High School. 2012 Hal Schram Mr. Basketball Award winner 2012 Gatorade Michigan High School Player of the Year 2012 Parade Magazine All-American 2x Detroit Free Press and The Detroit News Dream Team 2011 Gatorade Michigan High School Player of the Year Costello averaged 25.1 points, 19.1 rebounds, 4.0 assists and 4.0 blocks per game at Bay City Western for Coach Chris Watz. Costello led the Warriors to the Class 4A regional semifinals, an 18–6 record, and a second-straight district championship. He finished his career as the school's all-time leader in points (1,518), rebounds (1,069) and blocked shots (280). He was one of the best recruits in the country. He ranked among the top-100 players in the nation by the following: Rivals.com (#83)(#21 power forward) ESPNU100 (#87) (#17 power forward) Scout.com (#95) (#23 center) He averaged 19.8 points, 13.0 rebounds and 3.8 blocks as a junior, shooting 53.4 percent from the field and 72 percent from the foul line. Costello posted a school-record 19 double-doubles. He helped his team improve from 10-11 in 2010 to 24-3 in 2011, leading Bay City Western to Class A state semifinals for the first time in school history. His stats earned him MVP of Saginaw Valley Association. Costello averaged 16.7 points 11.8 rebounds, 3 blocks and 3 assists as a sophomore and set a school record with 14 blocks in a single game. In 2010 Bay City Times named him to the Dream Team and first-team All-Saginaw Valley League selection. He was a National Honor Society member. Costello was honored with a selection to the Reese's College All-Star game in Houston, Texas.

CBS-BigTen 2nd Team BigTen 2nd Team Media BigTen 3rd Team Coaches Bleacher Report Team of the Week; Week 11 Sports Illustrated- All Glue Team (Captain) Reese's College All Star Game Portsmouth Invitational Tournament PIT All-Tournament Team

Professional career Iowa Energy (2016–2017) After going undrafted in the 2016 NBA draft, Costello joined the Atlanta Hawks for the 2016 NBA Summer League. On July 26, 2016, he signed with the Hawks, but was later waived on October 17 after appearing in two preseason games. He signed with the Memphis Grizzlies on October 20, but was waived again on October 24. Five days later, he was acquired by the Iowa Energy of the NBA Development League as an affiliate player of the Grizzlies.

San Antonio Spurs (2017–2018) On July 24, 2017, Costello signed a two-way contract with the San Antonio Spurs. Under a two-way contract, he divided time between the Spurs and San Antonio's G-League affiliate, the Austin Spurs. He made his NBA debut on November 12 during a blowout 133–94 win over the Chicago Bulls.

Scandone Avellino (2018–2019) On August 2, 2018, Costello signed a deal with the Italian club Sidigas Avellino of the LBA.

Gran Canaria (2019–2021) Costello averaged 11.4 points and 7.8 rebounds per game for Gran Canaria during the 2019–20 season. He inked a two-year contract extension on June 25, 2020. During the 2020–21 season, Costello averaged 12.5 points, 5.9 rebounds and 1.2 assists in the Liga ACB, as well as 10.2 points, 6.5 rebounds and 1.7 assists in the EuroCup.

Baskonia (2021–2024) On July 5, 2021, Costello officially signed a three-year contract with fellow Liga ACB club Baskonia, marking his EuroLeague debut.

Valencia Basket (2024–2026) On July 2, 2024, he signed with Valencia of the Spanish Liga ACB. In July 2026, Costello officially parted ways with the team.

Chiba Jets (2026–present) On July 13, 2026, Costello signed with the Chiba Jets of the Japanese B.League.

National team career Costello was granted the Ivorian citizenship and played with the Ivory Coast national basketball team during AfroBasket 2021.

Personal life Costello is the son of Mike and Jen Costello. He majored in interdisciplinary studies in social science with a concentration in human capital and society.

Career statistics

NBA

EuroLeague

EuroCup

Basketball Champions League

Domestic leagues Year Team League

College