2008-09: Seth Ambroz played for the Omaha Lancers of the USHL, appearing in 60 games for that club. He scored 14 goals and added 17 assists for 31 points while also picking up 88 penalty minutes. In 3 playoff games, Ambroz registered no points.
2009-10: In 56 games for the Omaha Lancers, Ambroz scored 22 goals and added 27 assists for 49 points while also adding on 188 penalty minutes. In 8 playoff games, Ambroz scored 4 goals and added 2 assists for 6 points. Ambroz was named to the USHL All-Rookie Team.
2010-11: In 56 games for the Lancers, Ambroz scored 24 goals and added 22 assists for 46 points to go along with 89 penatly minutes. In 3 playoff games, Ambroz scored 2 goals. Ambroz played for the USA at the World Junior A Challenge where he scored 2 goals and added 3 assists for 5 points in 4 games. Ranked 31st amongst North American skaters in the Central Scouting final rankings, he was selected by Columbus in the fifth round (128th overall) in the 2011 NHL Draft.
2011-12: In his first year with the Golden Gophers, Ambroz was a nonfactor. He had eight points in 41 games, netting 5 goals with 3 assists. The Gophers finished first in the WCHA in the regular season. After an upset loss to North Dakota in the WCHA Final Five, Minnesota rebounded to capture the NCAA West Regional, defeating Boston University and avenging the loss to the Fighting Sioux. The Gophers lost to Boston College, 6-1, in the Frozen Four semifinals.
2012-13: Ambroz played in 38 of 40 games for Minnesota as a sophomore. He scored 9 goals with 7 assists and was plus-11 with 22 penalty minutes. The Gophers finished first in the WCHA for the second straight year in their final year in the league but ended the season with back-to-back losses. Colorado College defeated the Gophers in the WCHA semifinals and Minnesota lost 3-2 to eventual national champion Yale in the NCAA West regional semifinals.
2013-14: Ambroz scored a career-high 14 goals in his junior season with Minnesota as the Gophers finished first in the newly-formed Big Ten hockey conference and advanced to the Frozen Four championship game. Frequently teamed with left wing Tom Serratore and center Travis Boyd as Minnesota head coach Don Lucia mixed and matched lines, Ambroz added 9 assists and was plus-8 with 26 penalty minutes in 41 games. After an upset loss to Ohio State in the Big Ten tournament semifinals, Minnesota defeated Robert Morris and St. Cloud State to capture the NCAA West Regional and then defeated North Dakota, 2-1, with a game-winning short-handed goal in the game’s final second. Union defeated Minnesota, 7-4, in the championship game.
2014-15: Ambroz made his professional hockey debut with the AHL’s Springfield Falcons following his senior season at the University of Minnesota. He was -1 with no points and one major penalty in four games with the Falcons. Ambroz scored 12 goals with a career-high 11 assists and was +3 with 23 penalty minutes in 39 games for Minnesota. The Gophers finished first in the Big 10 and captured the league’s only NCAA tournament berth, defeating Michigan, 4-2, in the conference championship game. Minnesota fell to in-state rival Minnesota-Duluth, 4-1, in the NCAA Northeast Regional semifinals.
2015-16: Ambroz attended training camp with the Blue Jackets and was released — signing an AHL contract with the Lake Erie Monsters. He was -2 with no points nor penalty minutes in three games with the Monsters, spending most of the year with the ECHL’s Cincinnati Cyclones. The team leader in penalty minutes, he scored 4 goals with 6 assists in his first 51 games.
Ambroz has size and a nice shot, but needs to work on his awareness. He is a big body on the ice and can develop into a great power forward once he learns proper positioning in the crease. He scored a career-high 14 goals in his junior season at the University of Minnesota but his role at the pro level appears as if it will be that of a lower line, checking forward.
Ambroz is skating with the Cincinnati Cyclones in the ECHL in 2015-16 after signing a two-way AHL contract with Columbus affiliate Lake Erie. He appeared in three AHL games with the Monsters and has been a lower line forward, enforcer type with the Cyclones. Ambroz has some scoring ability but to this point it appears his role at the NHL level — if he reaches that level — will be a fourth line, energy player who can mix it up when necessary.