2006-07: Falk posted 15 points on 3 goals and 12 assists along with 88 penalty minutes in 62 games for the Spokane Chiefs (WHL). Led the Chiefs in plus/minus at +11. Drafted by the Wild in the fourth round, 110th overall.
2007-08: Led the WHL and Memorial Cup champion Chiefs in plus/minus for the second straight season at +27. Recorded career-highs in goals with four and assists with 22. Named to Memorial Cup All-Star team.
2008-09: Falk signed a three-year, entry-level contract with Minnesota in October 2008 and skated in 65 of 80 regular season games for the Wild’s AHL affiliate Houston in his first pro season. A solid, stay-at-home defenseman, Falk’s ice time gradually increased and he finished the season -4 with 3 assists and 44 PMs. After finishing third in the West Division, the Aeros reached the AHL semifinals and Falk played in all 20 playoff games, finishing an even plus/minus with 2 assists and 4 PMs.
2009-10: Falk made his NHL debut late in the season, seeing limited action in three March games for the Wild, and was one of the top defenders for AHL Houston. Falk was -2 and averaged 7:32 minutes of ice time in his brief stint with the Wild. In 69 games with the Aeros, who missed the AHL playoffs after finishing last in the West Division, he scored 3 goals with 6 assists and was -6 with 87 PMs.
2010-11: Falk opened the season with the Wild and was with the team until late November before being sent to AHL Houston; and appeared in four late season games in two separate call ups. In 22 games with the Wild he was -4 with 3 assists and had 6 PMs; averaging 14 minutes of ice time. Falk played a significant role in the success of the Aeros, who finished second in the West Division and reached the Calder Cup finals. In 55 regular season games he scored 3 goals with 11 assists and was a team-high +16 with 41 PMs. He skated in all 24 playoff games and was +3 with 5 assists and 33 PMs. Falk was re-signed to a one year contract by the Wild as a restricted free agent in July 2011.