
Fight night · ONE
Sawada meets Nikolakakos for the atomweight title
Sawada has won four in a row, and a win would make her the first Japanese woman to hold a ONE world title. Denice Zamboanga vacated the belt on June 23, 2026.
ONE · atomweight

7–0–0
4 KO · 0 SUB · 3 DEC
Anastasia Nikolakakos fights at women's atomweight in ONE.
She beat Jihin Radzuan by split decision at ONE Fight Night 45 on July 17, 2026. She knocked out Victoria Souza with punches at 4:59 of the first round at ONE Fight Night 41 on March 13, 2026. The win streak is seven.
She trains at Gracie Humaita Bolton and fights out of Toronto, and ONE lists her as Canadian.

Fight night · ONE
Sawada has won four in a row, and a win would make her the first Japanese woman to hold a ONE world title. Denice Zamboanga vacated the belt on June 23, 2026.
| Date | Opponent | Result | Method | Round | Time | Event |
|---|---|---|---|---|---|---|
| Jihin Radzuan | Win | Decision (split) | 3 | 5:00 | ONE Fight Night 45 | |
| Victoria Souza | Win | KO (punches) | 1 | 4:59 | ONE Fight Night 41 | |
| Ana Palacios | Win | TKO (punches) | 3 | 3:20 | Combate Global | |
| Elisandra Ferreira | Win | Decision (technical unanimous)Stopped in the fourth and went to the cards. | 4 | 3:42 | PAWFC 2 | |
| Ashley Medina | Win | TKO (punches) | 2 | 3:26 | Invicta FC 33 | |
| Francis Hernandez | Win | Decision (unanimous) | 3 | 5:00 | BTC 2 | |
| Coralie Dixon | Win | TKO (punches)Pro debut. | 2 | 4:05 | BTC 1 |