2006-07: Tallied 80 points on 43 goals in 67 games. The post-season wasn’t as kind to Mitchell with only five points and one goal in nine games.
2007-08: Mitchell appeared in 63 games in his third season with the Oshawa Generals (OHL). He netted 24 goals and another 36 helpers to end the regular season with 60 points. He added another 16 points (10+6) in 15 playoff games and joined the Toronto Marlies (AHL) for two of their postseason games. He recorded one point with the Marlies, an assist.
2008-09: Mitchell played a huge role on the Spitfires this season, scoring 33 goals and 35 assists in 66 games with the team. He would go on to add 14 goals and 15 assists in 20 playoff games as the Windsor Spitfires marched on to win the OHL Championship, and the CHL Memorial Cup.
2009-10: Given a brief nine game stint with the Marlies where he managed only two goals and an assist, Mitchell was sent back to the already stacked Windsor club. In 32 games with the Club, Dale would continue on his tear, scoring 16 goals and 27 assists in the regular season to go with 7 goals and 10 assists in 19 playoff games as the Spitfires, once again, won the OHL Championship. In the four game Memorial Cup tournament, Mitchell would add 3 goals and 3 assists to win the Memorial Cup for a second time.
2010-11: Mitchell appeared in 49 games with the Toronto Marlies (AHL) in his first full pro season and struggled with inconsistency and some injury issues. In limited ice time he scored 5 goals with 8 assists and was +1 with 29 PMs. Mitchell skated in seven games with the ECHL Reading Royals (including two playoff contests) and was -7 with 2 goals 2 assists and 14 PMs. He had off-season surgery and is not expected to play until November 2011.
Small, bullish, and with a low center of gravity, Mitchell is hard to knock off the puck. Was a successful scorer at the junior level, but hasn’t been able to produce as highly at the AHL level. A pure north/south player, Mitchell has a heavy shot that lacks accuracy. He can sometimes allow his emotions to get the better of him.
After being dealt by the Toronto Maple Leafs to the Anaheim Ducks in 2012, Mitchell was not given a qualifying offer by the Ducks and is presently a free agent.