AJPW Black Power Series (Night 4)

 took place in Aomori, Japan. The event took place on May 16, 1973. It was an event put on by All Japan Pro Wrestling.

Results

 * Numbers in parentheses indicate the length of the match.
 * (c) refers to the champion(s) heading into the match.
 * Singles Match: Mitsuo Momota defeats Munenori Higo
 * Singles Match: Great Malenko defeats Akio Sato
 * Singles Match: Motoshi Okuma defeats The Alaskan
 * Singles Match: Rufus Jones defeats Masio Koma
 * Singles Match: Thunder Sugiyama defeats Thunderbolt Cannon
 * Singles Match: Abdullah The Butcher defeats Matty Suzuki
 * Tag Team Match: Giant Baba & The Destroyer defeat Ripper Collins & Roger Kirby