2010-11: Colin Sullivan played for Avon Old Farms (CT) prep school. In 27 games, he scored 3 goals and added 12 assists for 15 points. Sullivan has committed to Yale University for the 2011-12 season.
2011-12: Sullivan played his senior year of hockey at the Avons Old Farms Prep school. The big defenseman work really hard on and off the ice to improve his strength and overall game. He finished the season, scoring seven goals along with nine assists while taking no penalties. Sullivan was named to the 2012 Boys’ Hockey All-New England Team by the NESPAC coaches association.
2012-13: Sullivan skated in 32 of 38 games for defending national champion Boston College as a freshman. He had 1 assist and was -4 with 6 penalty minutes in limited minutes for the Eagles. Boston College finished second in Hockey East and received an at-large bid to the NCAA tournament after a loss to Boston University in the Hockey East semifinals. BC lost to Union, 5-1, in the NCAA East Regional semifinals.
2013-14: Sullivan left Boston College in October to skate for the USHL’s Green Bay Gamblers. In 41 games he scored 2 goals with 6 assists and was -2 with 46 penalty minutes. The Gamblers finished fourth in the Eastern Conference, falling to Clark Cup champion Indiana in a first-round playoff series. Sullivan was -1 with no points and 2 penalty minutes in four playoff games. In March 2014 he committed to playing college hockey at Miami University in 2014-15.
2014-15: Sullivan skated in nine games for Miami University as a sophomore, missing much of the season after an early season injury. Playing both defense and forward for the RedHawks, he was +3 with 4 penalty minutes, recording his only point (an assist) in a 7-5 loss to Western Michigan in Game 2 of their three-game NCHA quarterfinal series. Miami finished second in the NCHC in the regular season and earned an NCAA tournament bid after defeating St. Cloud State, 3-2, in the NCHC tournament championship game. Eventual national champion Providence topped the RedHawks, 7-5, in a wild East Regional semifinal game.
Sullivan is a strong skater who is athletic and agile. His hockey instincts are still developing and he has played both defense and forward during his college career. A late-round project when he was drafted in 2011, he is still a work in progress and his development has been hampered by injuries. More will be known about his pro potential following his college season in 2015-16.
Sullivan will return to Miami University for his second season with the RedHawks in 2015-16. Officially granted an additional year of eligibility by the NCAA in the spring, he will be a junior this season. He has some technical skill and skates well but to this point his production has not matched his potential. At this point he is a longshot prospect in an organization that is fairly deep with defensemen. His progress over the next two seasons will determine his professional future..