2008-09: Justin Holl skated in 28 games for Minnesota's Minnetonka HS as a junior. He finished the season with 1 goal, 9 assists and 6 PMs. The Skippers were one of the top ranked teams in the state and faced Edina in the Section 6AA final.
2009-10: Played for Minnetonka High School, and then finished the season with the USHL's Omaha Lancers. In 31 games for Minnetonka, Holl scored 20 goals and added 17 assists. In his 11-game stint with the Lancers, Holl picked up 4 assists and had a +7 rating. In 8 playoff games for the Lancers, Holl scored 1 goal and added 1 assist.
2010-11: Holl was in and out of the lineup at the University of Minnesota as a freshman, appearing in 25 games with 1 goal, 6 assists for 7 points. He was limited to a checking role for much of the season on the Gopher's veteran blue line.
2011-12: Holl, a sophomore, was one of four Minnesota underclassmen on defense to play in every game as the Gophers enjoyed their winningest season since 2006-07. In 43 games he scored 3 goals with 8 assists and was plus-18 with 34 penalty minutes. The Gophers won the WCHA regular season title and reached the NCAA Frozen Four. Minnesota defeated North Dakota in the NCAA West regional final after having lost to the Fighting Sioux in the WCHA tournament semifinals.
2012-13: Holl shifted from defense to winger in his junior season as Minnesota captured its second straight WCHA regular season title. He scored 3 goals with 4 assists in 35 games and was +3 with 10 penalty minutes. One of the top teams in college hockey, the Gophers finished 26-9-5 after a 2-0 loss to Colorado College in the WCHA Final Five semifinals and a 3-2 overtime loss to eventual national champion Yale in the NCAA West Regional.
Holl combines a projectable 6'2 frame with excellent skating ability. He is a strong puck-mover on the blue line with great vision and passing ability. His defensive-zone play has improved over the course of his first two college seasons as he has logged significant minutes in a checking role. Although he is still filling out and not overly-physical, he instead relies on positioning and quick reads to make plays in his own zone.
Holl is expected to return to his normal defensive position in 2013-14 after skating at forward for much of the 2012-13 season due to an over-abundance of players on the blue line. With the depth on defense already at the pro level and Stephen Johns expected to join them after his college season, Holl may still be playing for a pro contract from the Blackhawks as he heads into his senior season for Minnesota.