2009-10: Merrick Madsen played for the California Heat Bantam AA hockey program in the Los Angeles area.
2010-11: Madsen skated for the California Heat midget U16 AAA team.
2011-12: Merrick Madsen moved from the West Coast to New Hampshire to play prep school hockey at the Proctor Academy. A sophomore for the Hornets, he shared the goaltending duties with freshman Beau Collins, Madsen posted a 6.42 goals against and .862 save percentage for a team that finished 7-20-0. Madsen participated in USA Hockey’s Warren Strelow National Goaltending camp and the Select 17 Development Camp in June.
2012-13: Madsen committed to playing college hockey at Harvard in 2014-15 in July before returning to Proctor Academy for his junior season. While Proctor again struggled in New England prep league play, finishing 9-16-3, Madsen had a strong season, recording a 3.74 goals against and .905 save percentage in nearly 1200 minutes of ice time. He was selected by Des Moines in the second round (18th overall) of the 2013 USHL Entry Draft. Madsen was ranked 26th amongst North American goalies in Central Scouting’s final rankings and was selected by Philadelphia in the sixth round (162nd overall) in the 2013 NHL Draft.
2013-14: Madsen skated for the Minot Minotauros in the North American Hockey League — sharing the goaltending duties with Mercyhurst College recruit Brandon Wildung. He was 10-16 with one shutout in 27 regular season games and had a 2.75 goals against and .904 save percentage. Minot finished fourth in the Central Division and lost to first-place Austin in a first round playoff series. Madsen was 1-2 in three playoff games with a 2.45 goals against and .932 save percentage.
2014-15: Madsen played in one game for Harvard University as a freshman — stopping 11 of 13 shots in 43 minutes of ice time in relief of starter Steve Michalek (MIN) in a 5-1 loss to St. Lawrence on January 17th.
2015-16: Madsen took over as the starting goalie for Harvard in his sophomore season, appearing in 29 of 34 games for the Crimson. He was 18-7-3 with four shutouts and had a 2.00 goals against and .931 save percentage. Harvard finished third in ECAC Hockey and reached the conference tournament championship game, receiving an at-large bid to the NCAA tournament after a 4-1 loss to Quinnipiac in the ECAC final. The Crimson lost to Boston College, 4-1, in the ECAC Northeast Regional semifinals.
Coming from a non-traditional hockey background, Madsen is a bit raw and will be tested playing hockey at the NCAA level. He has the physical attributes and competitive nature to be a successful goalie.
Madsen emerged as the starting goalie for Harvard in 2015-16 after appearing in just one game as a freshman. The sophomore was one of the ECAC Hockey league's top goalies as Harvard earned its second straight NCAA tournament berth. A relative unknown when he was drafted by the Flyers in 2013, Madsen's prototypical goalie size and his ability to use it to advantage call to mind another former college goaltender, Calgary Flames' prospect Jon Gillies.