2006-07: In his WHL rookie season, Koper appeared in 50 games for the Spokane Chiefs. He picked up 2 goals with 3 assists and 14 PIM with -3 plus/minus. In 5 playoff games for the Chiefs, he had no points and was a -1.
2007-08: Koper played in 69 games for the Chiefs, scoring 12 goals and adding 14 assists. He picked up 45 penalty minutes and was +17. In the Chiefs march to the Memorial Cup championship, Koper played in 21 games, netting 4 goals and 5 assists. he had 14 penalty minutes and had a +3 rating.
2008-09: Koper again improved his totals from the previous season. In 71 games with the the Chiefs he scored 23 goals with 36 assists and 57 PIM and was an impressive +31. In the playoffs, Koper played in 12 games, scoring 3 goals with 7 assists though the Chiefs failed to defend their title.
2009-10: Complimented leading scorer Mitch Wahl (CAL) in the Spokane offensive attack. In 68 games Koper scored 27 goals with 27 assists and also had 51 PIM. While his plus/minus ranking of +15 was down from the previous year, he proved dangerous on the power play with 8 goals and also saw ice time in all situations.
2010-11: Koper rode shotgun on the Spokane Chief’s top line with Tyler Johnson and recorded 32 goals and 82 points in 72 games, a remarkable increase on previous seasons. The edgy winger continued his leadership role into the playoffs with 9 goals and 16 points in 17 games. Unsigned by Atlanta, Koper will attend the Jets pre season camp as a free agent tryout.
Koper's size and skating speed, to go along with a strong shot are his calling cards. He is a versatile forward that developed into a reliable and complete player. His offensive contributions have increased each year. Despite concerns about his ability to give consistent effort early in his junior year he has made progress each season in becoming a solid two-way player. Not shy when it comes to physical play and enjoys play along the walls.
Unable to secure a pro contract from the Jets, Koper registered at the University of Alberta and will focus on his education.