In 1998, he was a member of the team that won The Dominion Regalia Silver Tankard for the Rideau Curling Club.
In 2001, Rajala won the Ontario Mixed title with teammates Darcie Simpson, Chris Fulton and Linda Fulton. This qualified his team to represent Ontario at the 2001 Canadian Mixed Curling Championship. The team finished the round robin with a 7–4 record in a massive 7-way tie for first place. After defeating British Columbia (skipped by Wes Craig) in their first tie breaker game, they lost in their second tie breaker game to Saskatchewan (skipped by Scott Coghlan).
With Moffatt, Rajala went to seven provincial championships. He began skipping 2002 and played in three more championships as skip (2003, 2008, 2011).
Rajala won the 2013 Ontario Senior Curling championships with Moffatt at third, Doug Johnston and Ken Sullivan. They represented Ontario at the 2013 Canadian Senior Curling Championships where they lost in the final to Wayne Tallon's New Brunswick rink.
Rajala went to Lakeway Collegiate & Vocational School in Sault Ste. Marie, where he was the skip of the high school curling team,[4] and was the valedictorian of his graduating class.[5] He graduated from the University of Waterloo with a degree in Mechanical Engineering in 1985, and then began working with Davis Engineering Ltd. in Ottawa.[6]
