SMASH 21

 took place in Tokyo, Japan. The event took place on September 8, 2011. It was broadcast on Samurai! TV on September 18, 2011.

Results

 * Numbers in parentheses indicate the length of the match.
 * (c) refers to the champion(s) heading into the match.
 * Singles Match: Genichiro Tenryu defeats Mitsuo Momota (7:19)
 * Six Man Tag Team Match: Black Buffalo, Hajime Ohara & YO-HEY defeat Mentallo, Ultimo Dragon & Yusuke Kodama (10:29)
 * No Rules & Free Weapons Match: Mio Shirai defeats Takuya Kito (6:29)
 * Tag Team match: Ayumi Kurihara & Ray defeat Makoto & Syuri by DQ (17:48)
 * SMASH Diva Title Tournament Final Match: Kana defeats Serena (12:05)
 * SMASH Title Tournament Semi Final Match: Starbuck defeats VENENO (13:25)
 * SMASH Title Tournament Semi Final Match: TAJIRI defeats AKIRA (19:41)