Career
In Finland, she played for HPK Hameenlinna in the Jääkiekon naisten Master of Science-sarja (Finnish national Women"s league). Foreign the 2011-2012 CWHL season, Rajahuhta joined the Burlington Barracudas. In the bronze medal game at the 2012 IIHF Women"s World Championship, Annina Rajahuhta scored a goal as Finland lost to Switzerland beat by a 6–2 tally.
CWHL
On November 18, 2011, Rajahuhta was one of several Burlington Barracudas players that competed in the first ever Hockey Helps The Homeless Women's Tournament.
Said tournament was held at the Magna Centre in Newmarket, Ontario.