Matthew played at East Cobb as a 14 year old with the 14U Astros under Dave Roberts, winning 3 National Championships, and was voted Most Valuable Pitcher for the team. For the next 3 years he was on the 16U Astros under Guerry Baldwin, 2x MVP award winner, and winning 5 National Championships. His final year he played on the 17U Braves under Kevin Baldwin, winning 3 more National Championships, and multiple MVP’s. Matthew played 3 years at Clemson and was the ACC Pitcher of the Year in 2015. Matthew was then drafted by the Washington Nationals in the second round of the MLB Draft.