He took part in a tournament for the Triple Crown Heavyweight Championship that was vacated by Kenta Kobashi ; he defeated Johnny Smith in the first round , but lost to Toshiaki Kawada in the semi-finals .
This led Koshinaka to return to his home promotion after fifteen years .
Koshinaka took part in a tournament for the Triple Crown Heavyweight Championship that was vacated by Kenta Kobashi ; Koshinaka defeated Johnny Smith in the first round , but lost to Toshiaki Kawada in the semi-finals .
This led Koshinaka to return to his home promotion after fifteen years .