Here is a list of Hamanaka's best fights. For a list of Hamanaka's losses, refer to "Kazuhiro Hamanaka Losses".
On June 8, 2003 Kazuhiro Hamanaka faced off against Nino Schembri at age 24. He was coming in with a record of 1-0 (0), and Schembri was 29 years old and with a record of 3-0 (2). Hamanaka won the fight via 3-round unanimous decision.
On April 21, 2006 Kazuhiro Hamanaka faced off against Wesley Correira at age 27. He was coming in with a record of 3-2-1 (2), and Correira was 27 years old and with a record of 17-9 (15). Hamanaka stopped Wesley Correira via submission.