Career
Jaspers was drafted 71st overall by the Phoenix Coyotes in the 1999 National Hockey League Entry Draft. He was drafted from the Sudbury Wolves of the Ontario Hockey League. Jaspers made his professional debut in the 2001-2002 season with the Coyotes affiliate the Springfield Falcons of the American Hockey League.
Jaspers made his National Hockey League debut in the same season, after he received his first National Hockey League call-up on January 20, 2002.
Jaspers then spent the next four years primarily with the Falcons of the AHL. Unable to crack the National Hockey League regularly he was traded by the Coyotes to the Tampa Bay Lightning for Jarrod Skalde on July 25, 2005. Jason however never played a game with the Lightning, playing for their affiliate coincidentally still the Springfield Falcons.
Jaspers finally left the Falcons, ranking second in all-time appearances, in the 2006-2007 season when he signed with German team Adler Mannheim, on July 6, 2006. After three years with Adler Mannheim signed on April 6, 2009, with Kölner Haie.
Jaspers played for three seasons with the Thomas Sabo Ice Tigers, before opting to sign a one-year contract to continue his professional career in the DEL with the Iserlohn Roosters on June 23, 2015.