In 2002 Boychuk was part of the annual top prospects game. With their first pick in the 1999 WHL draft, the Hitmen selected Johnny Boychuk 18th overall in the first round. Boychuk played Triple AAA Bantam in 1998-99 with the Edmonton Maple Leaf Athletic Club.
Boychuk saw his point total drop from 48 in 2002-03 to just 33 in 2003-04, although he did play in five fewer games due to injury. Although his point production decreased, Boychuk helped the Moose Jaw Warriors have their franchise best season with 41 wins.
Boychuk signed a three-year contract with the Avs late in 2003.
At 6’2, 215 lbs, Boychuk has decent size. He plays a hard-nosed physical game and is well known for his devastating open-ice hits. He enjoys mixing it up with opposing players on the boards and after the whistle, and has shown that he is not afraid to drop the mitts. For a defensive defenseman, he does possess decent offensive capabilities. His slapshot is in the mid-90’s and he makes a smart first pass on the breakout. He plays with confidence in himself, but needs to be consistent and play with the same physical edge every night.