Watanabe also competed in JWP. Her most notable works mainly focused on title matches, such as the one from JWP Climax 2008 on December 28, where she teamed up with Keiko Aono to unsuccessfully challenge Ran Yu-Yu and Toshie Uematsu for both the JWP Tag Team Championship and the Daily Sports Women's Tag Team Championship.[8]
During her eleven-year tenure with the promotion, Watanabe competed in various of the promotion's signarute events. As for the Tag League the Best, she made her first appearance at the 2001 edition where she teamed up with Kumiko Maekawa and scored a total of five points after going against the teams of Manami Toyota and Yumiko Hotta, Kaoru Ito and Momoe Nakanishi, Las Cachorras Orientales (Etsuko Mita and Mima Shimoda), Kiss no Sekai (Kayo Noumi and Miho Wakizawa) and Nanae Takahashi and Tomoko Watanabe.[10] At the 2002 edition she teamed up with Maekawa again, scoring a total of seven points after competing against Kiss no Sekai (Kayo Noumi and Momoe Nakanishi), Takako Inoue and Tomoko Watanabe, Las Cachorras Orientales (Etsuko Mita and Mima Shimoda), Fang Suzuki and Nanae Takahashi, Mariko Yoshida and Yumiko Hotta, Megumi Yabushita and Sumie Sakai, and Mika Nishio and Miyuki Fujii.[11]
Anothee event in which she took part was the Japan Grand Prix, the promotion's greatest yearly tournament, in which she made her first appearance at the 1997 edition where she scored a total of five known points against Kaoru Ito, Manami Toyota, Kumiko Maekawa, Etsuko Mita, Mima Shimoda, Tomoko Watanabe, Rie Tamada, Saya Endo, Tanny Mouse, Yoshiko Tamura and Mariko Yoshida.[12] Her last appearance took place at the 2004 edition where she defeated Nanae Takahashi in the first rounds but fell short to Hikaru in the second ones.[12]