[1] After graduating Ginowan High School in 1999, he joined J2 League side Kawasaki Frontale.
During the 2007 season, Ganaha was suspended for six games due to alleged infringement of the anti-doping code by intravenous therapy with saline solution and vitamin B1, due to dehydration and inability to take fluids orally.
In 2011, Ganaha moved to Japan Football League club FC Ryukyu based in his local Okinawa Prefecture.
In January 2014, Ganaha moved to newly promoted J2 club Kamatamare Sanuki, without playing for FC Ryukyu in J3.
However his opportunity to play decreased and the club finished at the bottom place in 2018 season and was relegated to J3.