Krush 51 was a kickboxing event held on February 6, 2015 at Korakuen Hall in Tokyo, Japan. The main event was a Krush -58kg title match between Takeru and Yuta Otaki, and the card also featured Masaaki Noiri against Ilias Bulaid in a -65kg super fight and a semi-final of the tournament for the vacant third Krush -70kg title between Hiroki Nakajima and Shintaro Matsukura.