| # | Date | Promotion | Match |
| 1 | 26.11.2000 |  |
Independent World Junior Heavyweight Title: Katsumi Usuda defeats Naoyuki Taira (c) by referee's decision (9:52) - TITLE CHANGE !!! Battlarts - Event @ Komazawa Olympic Park Gymnasium in Tokyo, Japan |
| 2 | 24.09.2000 | |
Independent World Junior Heavyweight Title: Naoyuki Taira (c) defeats Takeshi Ono (11:06) Battlarts - Event @ ACT CITY Hamamatsu in Hamamatsu, Shizuoka, Japan |
| 3 | 15.09.2000 | |
Independent World Junior Heavyweight Title: Naoyuki Taira (c) defeats Ikuto Hidaka (15:40) Battlarts - Event @ Tokyo FM Hall in Tokyo, Japan |
| 4 | 20.07.2000 | |
Independent World Junior Heavyweight Title: Naoyuki Taira (c) defeats Carl Malenko (11:27) Battlarts - Event @ IMP Hall in Osaka, Japan |
| 5 | 18.06.2000 | |
Independent World Junior Heavyweight Title: Naoyuki Taira defeats Katsumi Usuda (c) (12:51) - TITLE CHANGE !!! Battlarts - TV-Show @ Tokyo FM Hall in Tokyo, Japan |
