He was 3-1 with a 6.29 ERA as a Division I freshman then improved to 2-2, 6.17 in his second campaign, and 4-3, 5.06 as a junior. He fell to 2-7, 6.68 his senior year. Kapothanasis then joined the Greek National Baseball team for the 2010 European Baseball Championshipgoing 1-3 with a win over Sweden. He beat Sweden in his debut but lost to Croatia, Germany (on a bases-loaded walk to Ludwig Glaser and the Netherlands.