Grant Martin is the main goaltender for the Astral Aeroes. He is known for his strong athleticism and quick play with the stick, and uses an odd butterfly variant of goaltending. He helped lead the Aeroes to an SHL Cup final during the 2006-2007 Season, and was described as a "wall" during the 2013-2014 Season, leading to the Aeroes' first ever cup.
Grant won the Canadian Leaf Trophy during the 2013-2014 Playoffs for his "wild and strong sense of goaltending", capturing a 1.92 GAA and 4 shutouts during the playoffs. Interestingly, Grant got shutouts during the first game against the Orange Orators, the second game against the Scarlet Saviors, the third game against the Red Nukes, and the fourth game against the Black Blades. He faced no less than 37 shots in each game he fully played in the final, and as most as 48 shots. He made a 45-save shutout against the Blades in Game 4, including stopping shots on all five power plays against and three 2-on-1's. Lev Schneider said "that moment literally cried to the world, give Grant Martin the MVP." He tied for second-most shutouts in the postseason with 4, which is also shared with Buck Kampra and Ken Northberg.
During his career, Grant has been the subject of some controversy, noting as being "skunked" by William Smith twice in his career for the Goliath Ironwall Trophy, the award credited to the best goalie during that season, which he came short by 2 and 4 points respectively, and during the 2013-2014 Season, Grant had the most wins of any goaltender, the best GAA, and all-around attributes, but came short due to the notion that is described as "he had the better team in front of him". Grant commented on the manner; "It really sucks, but I try not to let it get to me. One day I will win it, hopefully."
During the 2016-2017 Season, Grant became the second goalie in league history (behind Buck Kampra) to win 300 games, a feat he accomplished in 508 games, as he won 3-0 and made 34 saves against the Damon City Warlords.
During the 2017-2018 Season, Grant became the first goalie in over seven years, since the 2010-2011 Season with Ken Northberg, to shut out Team X. He did so twice, once during the regular season for a 2-0 win, and in the playoffs, making 46 saves for a 1-0 win.
- 2013-2014: 45 GP: 32-9-4 (83 GA) 1.84 GAA - 10 SO Cowen - 22-5-0
- 2014-2015: 35 GP: 20-12-3 (90 GA) 2.57 GAA - 6 SO