2008-09: Tristan King skated in 47 games for the Medicine Hat Tigers in his third junior season. Plagued quite a bit by injuries, the Minnesotan nonetheless set career highs in goals (14), assists (22) and points (36). King appeared in two playoff games for the Tigers, who reached the second round of the WHL playoffs after finishing second in the Central Division.
2009-10: King was signed to a three-year entry-level contract by Dallas in September 2012 after participating in the 2009 Traverse City Tournament. Following the Stars camp he returned to the WHL for his final year with the Medicine Hat Tigers. KIng finished with 21 goals and 44 assists and was plus-eight in 70 games. The Tigers finished third in the Central Division and reached the second round of the WHL playoffs. King scored 3 goals with 3 assists and was minus-six with 12 penalty minutes in 12 games.
2010-11: King battled injuries in his first professional season – splitting the year between Dallas affiliates Texas (AHL) and Idaho (ECHL). He played in 11 AHL games with Texas and scored 2 goals with 2 assists; finishing minus-one with 6 penalty minutes. King played 24 ECHL games with Idaho, registering 3 goals and 10 assists, and was minus-four with 13 penalty minutes. The Steelheads reached the second round after finishing second in the Mountain Division. King scored 2 goals with 1 assist in six Idaho playoff tilts.
2011-12: King appeared in games with three different ECHL teams in his second pro season. Assigned to Dallas affiliate Idaho after training camp, he played four games with the Steelheads and was loaned to Greenville for one game before joining the Ontario Reign for the remainder of the year. After scoring just one goal in five games with Idaho and Greenville, King had some offensive success with the Reign, who finished first in the Pacific Division. He scored 17 goals with 24 assists and was plus-six with 38 penalty minutes in 45 games. The Reign met Idaho in a physical first round playoff series; won by the Steelheads in five games. King was minus-one in the first game of the series and after missing the second and third games returned for the final two games, registering two assists (his only playoff points) in Game Four.
2012-13: King spent his third pro season in the ECHL, putting up impressive offensive numbers, but an off-ice issue in February cast further doubts on his status as a prospect for the Stars. King was one of Stars' ECHL affiliate Idaho's leading scorers with 18 goals and 19 assists in 35 games before the incident and was then re-assigned to San Francisco. In 17 games with the Bulls he scored 4 goals with 4 assists and was -7 with 6 penalty minutes. San Francisco was fourth in the ECHL's Pacific Division and lost to Alaska in the first round. King played in 2 of 5 games, suffering a head injury in Game 2, and had no points nor penalty minutes.
Will remain in the minors for the foreseeable future.