 After losing his first two-round robin stage matches, Ibushi came back with a six match win streak to finish first in his block and advance to the semifinals of the tournament.On June 10, Ibushi first defeated Davey Richards in the semifinals and then Ryusuke Taguchi in the finals to win the 2011 Best of the Super Juniors tournament and earn a shot at Prince Devitt's IWGP Junior Heavyweight Championship.On June 18 at Dominion 6.18, Ibushi defeated Prince Devitt to win the IWGP Junior Heavyweight Championship for the first time.