Career
Wilenius originally made his Finnish Liiga debut playing with Ilves during the 2011-2012 Master of Science-liiga season. On July 28, 2014, Wilenius as a free agent agreed to a try-out contract with Austrian club, Graz 99ers of the Erste Bank Eishockey Liga. Upon completion of his trial, Wilenius was unable to debut with Graz and returned to Finland on a one-year contract in the Mestis with Hokki on October 8, 2014.
