Sumiko Inaba (8-2, 5) was born in Pukalani, Hawaii, U.S. on February 6, 1991. At the age of 29 years on November 5, 2020, she made her professional MMA debut against Jessica Ruiz, winning the fight via 1st-round TKO.
Inaba's last fight was a 3-round unanimous decision loss to Dakota Ditcheva at PFL Champions Series 2 at age 34 on July 19, 2025. She is on a 1-fight losing streak.
Some of Sumiko Inaba's best fights have been against Jessica Ruiz, Kristina Katsikis, Randi Field, Whittany Pyles, Nadine Mandiau, Veta Arteaga and Mackenzie Stiller. For details about these fights refer to "Best fights of Sumiko Inaba".
Inaba has 2 losses on her MMA record. For details about these losses refer to "Sumiko Inaba Losses".
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
10  | Jul 19, 2025 34 years, 5 months 8-2 (5) | 26 years, 11 months 14-0 (13) | PFL | 3 | UD | LOSS | |
9 | Sep 7, 2024 33 years, 7 months 8-1 (5) | Mackenzie Stiller | Bellator | 2 | TKO | WIN Punches | |
8 | Jun 13, 2024 33 years, 4 months 7-1 (4) | Saray Orozco | PFL | 3 | SD | WIN | |
7  | Nov 17, 2023 32 years, 9 months 6-1 (4) | 34 years, 7 months 7-5 (5) | Bellator | 3 | UD | LOSS | |
6 | Apr 22, 2023 32 years, 2 months 6-0 (4) | Veta Arteaga | Bellator | 3 | UD | WIN | |
5 | Oct 1, 2022 31 years, 7 months 5-0 (4) | Nadine Mandiau | Bellator | 3 | UD | WIN | |
4 | Apr 23, 2022 31 years, 2 months 4-0 (4) | Whittany Pyles | Bellator | 1 | KO | WIN Punches | |
3 | Oct 16, 2021 30 years, 8 months 3-0 (3) | Randi Field | Bellator | 2 | SUB | WIN Arm-triangle choke | |
2 | May 21, 2021 30 years, 3 months 2-0 (2) | Kristina Katsikis | Bellator | 3 | TKO | WIN Punches | |
1 | Nov 5, 2020 29 years, 8 months 1-0 (1) | Jessica Ruiz | Bellator | 1 | TKO | WIN Elbows |
