Originally a heavyweight championship, the weight class was dropped in 1998, making it an openweight title.

[4] On November 2, 1996, Chigusa Nagayo became the inaugural AAAW Heavyweight Champion after defeating Devil Masami.

[2] On January 10, 2022, the title reactivated under Marvelous That's Women Pro Wrestling, where Takumi Iroha won it by defeating Chihiro Hashimoto.

[6] On December 4, Nagashima won the vacant championship by defeating Mio Momono, making her the first person to hold the title both on Gaea and Marvelous.

She won the title by defeating Mayumi Ozaki at Marvelous 8th Anniversary on August 8, 2024, in Tokyo, Japan.