Here is a list of Nagata's best fights. For a list of Nagata's losses, refer to "Katsuhiko Nagata Losses".
On December 31, 2006 Katsuhiko Nagata faced off against Shuichiro Katsumura at age 33. He was coming in with a record of 2-1 (1), and Katsumura was 30 years old and with a record of 8-5-3 (4). Nagata stopped Shuichiro Katsumura via TKO.
On December 31, 2005 Katsuhiko Nagata faced off against Remigijus Morkevicius at age 32. He was coming in with a record of 1-0 (0), and Morkevicius was 23 years old and with a record of 15-4 (15). Nagata won the fight via 2-round unanimous decision.
On June 2, 2007 Katsuhiko Nagata faced off against Isaiah Hill at age 33. He was coming in with a record of 3-1 (1). Nagata won the fight via 3-round split decision.
On March 15, 2008 Katsuhiko Nagata faced off against Artur Oumakhanov in a lightweight bout at age 34. He was coming in with a record of 4-2 (1). Nagata won the fight via 2-round unanimous decision.
