Here is a list of Osawa's best fights. For a list of Osawa's losses, refer to "Kenji Osawa Losses".
On November 10, 2006 Kenji Osawa faced off against Takeya Mizugaki at age 30. He was coming in with a record of 12-5-1 (6), and Mizugaki was 22 years old and with a record of 6-0-1 (2). Osawa stopped Takeya Mizugaki via TKO.
On October 20, 2013 Kenji Osawa faced off against Seiji Akao in a bantamweight bout at age 36. He was coming in with a record of 20-10-2 (6). Osawa won the fight via 3-round split decision.
On May 29, 2011 Kenji Osawa faced off against Takafumi Otsuka in a bantamweight bout at age 34. He was coming in with a record of 17-9-2 (6), and Otsuka was 24 years old and with a record of 11-7-1 (5). Osawa won the fight via 2-round split decision.
On July 16, 2011 Kenji Osawa faced off against Keisuke Fujiwara in a bantamweight bout at age 34. He was coming in with a record of 18-10-2 (6), and Fujiwara was 28 years old and with a record of 11-3-4 (9). Osawa won the fight via 2-round unanimous decision.
On September 12, 2004 Kenji Osawa faced off against Hiroshi Umemura at age 27. He was coming in with a record of 7-3 (4), and Umemura was 32 years old and with a record of 3-6-2 (1). Osawa won the fight via 3-round unanimous decision.
On May 29, 2010 Kenji Osawa faced off against Yoshiro Maeda at age 33. He was coming in with a record of 16-9-2 (6), and Maeda was 28 years old and with a record of 26-8-2 (16). Osawa won the fight via 3-round split decision.
On March 1, 2009 Kenji Osawa faced off against Rafael Rebello at age 32. He was coming in with a record of 15-8-2 (6), and Rebello was 28 years old and with a record of 5-2 (4). Osawa won the fight via 3-round split decision.
On May 4, 2005 Kenji Osawa faced off against Jin Akimoto at age 28. He was coming in with a record of 10-3 (5), and Akimoto was 34 years old and with a record of 11-7-2 (5). Osawa won the fight via 2-round majority decision.
On December 24, 2012 Kenji Osawa faced off against Takeshi Inoue in a bantamweight bout at age 36. He was coming in with a record of 19-10-2 (6), and Inoue was 32 years old and with a record of 3-6 (1). Osawa won the fight via 3-round unanimous decision.
On November 3, 2003 Kenji Osawa faced off against Augusto Frota at age 26. He was coming in with a record of 4-1 (3). Osawa stopped Augusto Frota via submission.