Smith-Pelly registered nine points (4g, 5a) in 53 games with the New Jersey Devils during the 2016-17 season. During the 2015-16 season, Smith-Pelly recorded 25 points (14g, 11a) in 64 games with Montreal and New Jersey, earning career highs in goals, points and game-winning goals (5). In addition, Smith-Pelly earned a career-high three points (2g, 1a) on March 17, 2016, against Minnesota and recorded a career-long four-game point streak from March 10 to March 17, 2016 (4g, 2a). During the 2014-15 season, he recorded 20 points (6g, 14a) in 74 games with Anaheim and Montreal.
Smith-Pelly has recorded 93 points (40g, 53a) in 341 career NHL games with Anaheim, Montreal, New Jersey and Washington.
Smith-Pelly was drafted by Anaheim in the second round, 42nd overall, in the 2010 NHL Draft.