2006-07: Grantham spent his first WHL season with Moose Jaw, tallying a goal and two points through 33 games.
2007-08: This marked the centers second season with the Moose Jaw Warriors (WHL), a career-high 66 game campaign that resulted in a personal best 10 goals and 19 points. His 163 penalty minutes were another career high for Grantham.
2008-09: Grantham split the season between Moose Jaw and Kelowna (WHL) this season, racking up 193 penalty minutes between the two clubs. Offensively, the center tallied eight goals and 13 points through 38 games with the Warriors and added another four goals and 16 points in 29 games with the Rockets; 22 playoff games with Kelowna resulted in five points. Expect to see him with the Abbotsford Heat (AHL) next season.
2009-10: Grantham played the physical enforcer role well during his rookie season with the Abbottsford Heat. He scored only one goal with three assists and a minus three rating but accumulated 163 PIMs (21 fighting major) in 67 AHL games. The hardworking tough centerman provided energy to the game while protecting his teammates but the rookie must improve all facets of his game as the enforcer role has been diminishing at the NHL level and more skill will be required.
2010-11: Grantham had a difficult sophomore season in the AHL, suffering an ankle injury which limited him to just 22 games with the Heat. The 23-year-old was sent down to the ECHL Grizzlies for 14 games to finish his year. The 6'-4 207-pounder plays the protector role for his teammates and is always willing to fight with five (AHL), three (ECHL) majors this season.
2011-12: Grantham spent his third pro season as part of the Calgary organization in the ECHL – splitting the season between the Chicago Express and the Gwinnett Gladiators. Primarily playing an enforcer/energy forward role, he scored 8 goals with 8 assists and was minus-3 in 59 games between the two teams and had 162 penalty minutes. Grantham was not tendered a contract by the Flames in June 2011 and became an unrestricted free agent.
Grantham will not develop into a power forward but must show that he can score some goals and play better positional defense to have a chance to make the Flames as more than just an enforcer. The big forward will have to stay healthy while improving his overall game and play the full season with Abbottsford.
Grantham was not re-signed by the Flames and is not currently property of another NHL team.