Bitsadze Tariel vs Tsuyoshi Kohsaka (RINGS 7-20-98)

Tsuyoshi Kohsaka vs Nikolai Zouev (RINGS 3-28-98)

Mikhail Ilyukhin vs Tsuyoshi Kohsaka (RINGS 9-21-98)

Volk Han vs Tsuyoshi Kohsaka (RINGS 5-29-98)

Nikolai Zouev vs Tsuyoshi Kohsaka (RINGS 11-20-98)

Tsuyoshi Kohsaka vs Christopher Haseman (RINGS 12-22-99)

Tsuyoshi Kohsaka vs Christopher Haseman (RINGS 12-23-97)

Tsuyoshi Kohsaka vs Yoshihisa Yamamoto (RINGS 4-4-97)

Kiyoshi Tamura vs Tsuyoshi Kohsaka (RINGS 4-22-97)

Mikhail Ilyukhin vs Tsuyoshi Kohsaka (RINGS 11-20-97)

Tsuyoshi Kohsaka vs Daisuke Ikeda (RINGS 12-24-94)

Tsuyoshi Kohsaka vs Gilbert Yvel (RINGS 4-23-99)

Tsuyoshi Kohsaka vs Mikhail Ilyukhin (RINGS 12-22-00)

Tsuyoshi Kohsaka vs Mikhail Ilyukhin (RINGS 1-22-97)

Volk Han vs Tsuyoshi Kohsaka (RINGS 8-24-96)

Volk Han vs Tsuyoshi Kohsaka (RINGS 7-16-96)

Tsuyoshi Kohsaka vs Yoshihisa Yamamoto (RINGS 5-22-99)

Tsuyoshi Kohsaka vs Antonio Nogueira (RINGS 8-23-00)

Kiyoshi Tamura vs Tsuyoshi Kohsaka (RINGS 1-23-99)

Volk Han vs Tsuyoshi Kohsaka (RINGS 11-22-96)

Kiyoshi Tamura vs Bitsadze Tariel (RINGS 7-22-97)