Kana Watanabe has four losses against three opponents on her MMA record. For a list of Watanabe's best fights, refer to "Best fights of Kana Watanabe".
On April 11, 2025 Kana Watanabe faced off against Jena Bishop in a flyweight bout at age 36. She was coming in with a record of 13-4-1 (6). Watanabe lost the fight via 3-round unanimous decision.
On June 13, 2024 Kana Watanabe faced off against Liz Carmouche in a flyweight bout at age 35. She was coming in with a record of 13-3-1 (6), and Carmouche was 40 years old and with a record of 21-7 (14). Watanabe lost the fight via 3rd-round submission.
On April 22, 2023 Kana Watanabe faced off against Ilima-Lei Macfarlane in a flyweight bout at age 34. She was coming in with a record of 11-2-1 (6), and Macfarlane was 33 years old and with a record of 12-2 (8). Watanabe lost the fight via 3-round split decision.
On June 25, 2021 Kana Watanabe faced off against Liz Carmouche in a flyweight bout at age 32. She was coming in with a record of 10-1-1 (5), and Carmouche was 37 years old and with a record of 15-7 (9). Watanabe lost the fight via 1st-round TKO.
