The opportunity came via a scholarship from the University of Maryland. Maxwell was able to follow in the footsteps of his older brother Marty, who played in the outfield for the Terps from 2016-18 and garnered a similar level of success. He was a 2018 MLB Draft selection by the Houston Astros. Marty currently plays for the Miami Marlins where he recently signed a minor league deal with an invite to spring training.
Maxwell never overlapped with his brother Marty at Maryland but watched him play with Mom and Dad. Maryland was the only program to offer the Costes brothers a scholarship to play baseball, according to Maxwell. He added that the only college-style baseball camp he attended was one held by Maryland.
Former Terps head coach Rob Vaughn showed a level of interest that Costes was unfamiliar with. That paired with the college’s platform athletically as a Big Ten school and academically as one of the top schools in the nation was appealing to him.
“Maryland is the best of both worlds and it’s a Power Five school so the competition can be really good and academically all I've ever seen is how good of a school Maryland was,” Costes, who has a bachelor’s in psychology, said. “There wasn't really much else I could ask for in a higher education establishment to go to.”