2008-09: In his OHL rookie season, Dalton Smith played in 17 games for the Ottawa 67's. He scored 2 goals and added 5 assists for 7 points. In 7 playoff games, Smith did not register a point.
2009-10: In his second season with the 67's, Smith scored 21 goals and added 23 assists for 44 points in 62 games. He gained a reputation as a fighter, picking up 129 penalty minutes to go along with a +20 rating. In 12 playoff games, Smith scored 3 goals and picked up 3 assists for 6 points. Smith was chosen in the second round, 34th overall, of the 2010 NHL Draft by the Columbus Blue Jackets.
2010-11: Smith signed a three-year, entry-level contract with Columbus in August 2011 before returning to the Ottawa 67's for his second full season in the OHL. With several high profile scorers in the lineup, Smith provided the abrasiveness for Ottawa with limited offensive output until the OHL playoffs. In 64 regular season games for Ottawa, which finished first in the East division, Smith led the team with 124 PMs and scored 12 goals and 17 assists with a +9 plus/minus. In the wild, high-scoring four-game playoff series with Sudbury he had 2 goals with 2 assists and had an even plus/minus with 12 PMs. Ottawa lost two of the four games in overtime while being swept by the Wolves.
2011-12: In his final season in the OHL, Smith put up 25 points (15 goals and ten assists) with the Ottawa 67’s. In the playoffs he was just as irrelevant with four goals and four assists in 18 playoff games. He racked up 67 penalty minutes, which shows maturity because it is the first time since playing 17 games his first year that he has had under 100 penalty minutes.
2012-13: Smith played for Columbus AHL affiliate Springfield in his first pro season. He skated in 67 games for the Falcons, leading the team with 128 penalty minutes, and scored 3 goals with 6 assists and was +4. Springfield finished first in the Northeast Division and reached the second round in the playoffs. Smith played one playoff game and was -1 with 12 penalty minutes.
Smith is a tough guy, he is going to throw a statement hit or drop the gloves to stand up for a teammate. He improved his skating ability, but still does not turn heads with speed.
Smith is going to continue playing the role of a fourth liner for Springfield. His best bet at a chance in the NHL is if the Blue Jackets need a spark from his toughness.
Smith was traded along with Jonathan Marchessault by the Columbus Blue Jackets to the Tampa Bay Lightning in exchange for Matt Taormina and Dana Tyrell at the 2014 NHL Trade Deadline.