2009-10: Daniel Altshuller split the goaltending duties for the Ottawa 67s midget minor team with Gian Marco Demeis. He was 12-0-2 with four shutouts and had a 1.71 goals against in 16 games. Ottawa finished second to the Ottawa Valley Titans in the regular season. In seven playoff games he was 3-2 with a 4.34 goals against. Altshuller was a third round selection (45th overall) of the Belleville Bulls in the 2010 OHL Priority Draft.
2010-11: Altshuller played 43 games for the Nepean Raiders in the Junior A Central Canada Hockey League in Ontario. He finished with a record of 19-13-10 and a 3.22 goals against and .906 save percentage. Nepean finished fourth in the CCHL’s Yzerman Division. Altshuller played all seven games in Nepean’s playoff series with Brockville and was 3-4 with a 3.73 goals against and .911 save percentage.
2011-12: Oshawa obtained the OHL rights to Altshuller from Belleville in August and he played 30 games for the Generals in his first OHL season. Splitting time with 20-year-old Kevin Bailie, he was 11-19 and had a 3.55 goals against and .900 save percentage. Oshawa finished third in the East Division and lost in the first round of the playoffs. Altshuller appeared in five of six games during the Generals playoff series with Niagara, starting four of them, and was 2-2 with a 3.87 goals against and .918 save percentage. Altshuller was ranked 12th amongst North American goaltenders in Central Scouting’s final rankings prior to the 2012 NHL Draft and was selected by Carolina in the third round (69th overall) of the 2012 NHL Draft.
2012-13: Altshuller took over as the full-time starter for Oshawa in his second season with the Generals. He appeared in 58 games and was 36-18-2 with 3 shutouts; posting a 2.62 goals against and .909 save percentage. Oshawa finished second in the East Division and advanced to the second round in the OHL playoffs. Altshuller was 4-5 in the playoffs with a 3.00 goals against and .897 save percentage.
2013-14: Altshuller was one of the top goalies in the OHL in his third season with Oshawa. In 52 games he was 31-13-3 with 2 shutouts and had a 2.56 goals against and .917 save percentage. In December 2013 he signed a three-year entry-level contract with the Hurricanes. Oshawa finished first in the East Division and advanced to the Eastern Conference finals against North Bay. Altshuller played in 12 playoff games and was 8-3 with 3 shutouts, posting a 1.89 goals against and .931 save percentage.
Altshuller provided consistency and durability for the Oshawa Generals during his OHL career. He has good size and plays with sound technique and positioning.
Altshuller attended training camp with the Hurricanes before being assigned to AHL affiliate Charlotte to start the 2014-15 season; ultimately making his pro debut with the Florida Everblades of the ECHL. A highly-valued prospect, he won three of his first four starts with Florida as a backup to one-time Columbus prospect Allen York. He should gain valuable experience playing behind the minor league veteran on one of the ECHL's top teams. With starter Cam Ward and backup Anton Khudobin at the NHL level and minor league veterans Drew MacIntyre and John Muse sharing the goaltending duties for AHL affiliate Charlotte, the Hurricanes have a crowded goaltending picture. Altshuller has the makings of a goalie that could compete for time in the pros. His progression will have to steadily continue.