Toshiyo Yamada part of the 1987 All Japan Women's Pro-Wrestling (AJW)'s rookie class which also featured Manami Toyota, Etsuko Mita and Mima Shimoda.
On May 6, 1989 at Wrestle Marinepiad '89, Dream Orca were defeated by the "Tokyo Sweethearts" of Mima Shimoda and Manami Toyota.
On June 14, 1989, Dream Orca captured the AJW Tag Team Championship from Reibun Amada and Miori Kamiya.
Yamada also competed in the 1989 Japan Grand Prix, but was defeated by her second round opponent, Sakie Hasegawa.
While Toyota won, this match was deemed worthy enough to be a sole feature on a VHS tape entitled AJW Best Bout New Future Struggle.
The two continued to team up afterwards and on December 8, 1991 won Tag League the Best 1991, defeating Jungle Jack of Aja Kong and Bison Kimura in the finals.
January 1992 would not be over for Yamada however, as on the 19th, she paired with rival Manami Toyota to capture the newly created UWA World Women's Tag Team Championship, becoming the first champions.
Yamada had another match with tag partner and rival Manami Toyota and made it to the semifinals, where was defeated by Aja Kong.
On June 27, 1992, Yamada and Toyota successfully defended their WWWA Tag Titles against Akira Hokuto and Kyoko Inoue.
Yaamda was also involved in the Fuji TV Mid-Summer Typhoon Tag Tournament from July to August 1992.
On November 26, at Dreamrush, the precursor to Dreamslam 1 and 2, Yamada and Toyota defended their WWWA titles against the JWP team of Dynamite Kansai and Mayumi Ozaki in a 2 out of 3 falls match.
On February 28, 1993, Yamada and Toyota successfully defended their WWWA Tag Titles against Yumiko Hotta and Takako Inoue in a 2 out of 3 falls match.
On April 2, one of the most famous joshi events ever was held at All Star Dreamslam 1, which celebrated All Japan Women's 25th anniversary.
The main event featured Yamada and Toyota taking on the FMW team of Combat Toyoda and Megumi Kudo, who both graduated from the AJW Dojo.
It was a 2/3 falls match for the WWWA tag titles, where Kansai and Ozaki won, getting their revenge for their loss at Dreamrush.
On March 27, at Yokohoma Wrestling Queendom, Yamada lost her All Pacific Championship to Kyoko Inoue.
On June 10, 1994, Yamada and Toyota successfully defended their WWWA Tag Titles against Sakie Hasegawa and Kaoru Ito.
On November 20, Yamada competed at Big Egg Wrestling Universe with Tomoko Watanabe in a losing effort against LLPW's Shinobu Kandori and Mikiko Futagami.
Yamada then lost her All Pacific Championship to Yumiko Hotta at AJW Monday Night Sensation on December 4, 1995.
On December 12, 2004 at the Toshiyo Yamada Retirement Memorial Show, Manami Toyota and Etsuko Mita went to a 10 minute draw in an exhibition match in her honor.