Chas McCormick competed at Cooperstown Dreams Park during week 11 in 2007 with the West Chester Wildcats (PA).

Chas graduated from and played baseball and basketball at Henderson High School (West Chest, PA). He finished his high school career as a four-time All-Ches-Mont League selection including a three-time first team selection, recording 100 hits and helping the baseball team to Ches-Mont League titles in 2010 and 2013 and won the 2010 the PIAA AAAA Championship. On the basketball court, Chas became the first player in school history to score 1,000 career points. He was an All-Ches-Mont First Team in basketball as a junior and senior and second team as a sophomore.

Chas went on to attend and play baseball at Millersville University (Millersville, PA). An outfielder, Chas became a starter in centerfield from game 1 of his collegiate career. As a freshman (2014), named All-PSAC East Second Team, leading the team in runs scored with 45. He was also an All-Star selection in the Carolina-Virginia Collegiate League during summer baseball. During sophomore season (2015), named All-PSAC East First Team, voted Daktronics All-Atlantic Region First Team, NCBWA All-Atlantic Region Second Team and ABCA All-Atlantic Region Second Team. Accolades continued his junior (2016 - NCAA Atlantic Regional's Most Outstanding Player and to the NCAA Division II Championship All-Tournament Team, ABCA/Rawlings All-America Third Team, All-Atlantic Region First Team by ABCA and D2CCA and to the second team by NCBWA) and senior (2017 - PSAC Eastern Division Athlete of the Year in addition to All-PSAC East selection for the 4th straight year) years.

At the conclusion of his collegiate career, Chas was drafted by the Houston Astros during the 2017 Major League Baseball draft. He made his major league debut on April 1, 2021. He ended the 2021 season helping the Astros reach the World Series against the Atlanta Braves and win the 2022 World Series over the Philadelphia Phillies.