2012: Did not play (redshirt). 

Club: Played for Colorado Rapids Development Academy • also played for the Colorado Storm • selected for the U17 MLS Cup in 2010 • listed on the Colorado Rapids Regional Watch List • reached the State Cup Semifinal in 2008 and 2009, and won the State Cup in 2006 and 2007 with the Colorado Storm • ranked No. 18 in the Rocky Mountain and Southwest Region by TopDrawerSoccer.com  

High School: Attends Cheery Creek High School • named 2011 Preseason All-American and 2011 Colorado ESPN Rise All-State Starting XI • won the Colorado 5A State Championship in 2010 • named 5A All-State First Team in 2010 and 2011, and honorable mention in 2009 • earned All-Centennial League First Team honors 2009-11 • named to High School Soccer All-American game in 2011. 

Personal: Born December 13, 1993, in Denver, Colo. • son of Joe and Karen Hanlin• has two brothers, Jacob and Larson and one sister, Kaycie • chose Denver because of the great soccer, great coaching staff, location and its great business school • enjoys skiing, swimming, playing guitar and participating in his youth group • hopes to one day play professional soccer • undecided major • also considered Cal Poly, Santa Clara, Point Loma, George Mason and San Diego University.

Bobby Muuss on Hanlin: "Karsten is a local Denver player that we have followed for a couple of years now. In my opinion we were lucky to get the best player in Colorado to stay in state. He has versatility and a competitiveness that instantly attracted us to him. He can play in a couple of different attacking spots, as well as in the back. Like his incoming classmate Jordan, he comes from an MLS academy (Colorado Rapids) where he has had opportunities to play with professionals. This can only help his development." 

Brian Crookham, Colorado Rapids Youth Academy Director of Operations:  "Karsten is a very versatile player who will fit in quickly at the college level. His ability to play on the attacking side of the ball combined with his willingness to win it back when his team doesn't have it will help him find a consistent place in the lineup. We are excited to watch his progress over the next four years at DU."