Here is a list of Imanari's best fights. For a list of Imanari's losses, refer to "Masakazu Imanari Losses".
On August 17, 2008 Masakazu Imanari fought Hiroshi Umemura in a bantamweight title fight for Umemura's DEEP Championship title. Imanari was 32 years old and with a record of 15-6-2 (12), and Umemura was 36 years old and with a record of 11-7-3 (9). Imanari stopped Hiroshi Umemura via 1st-round submission and is crowned the new DEEP bantamweight champion.
On August 5, 2007 Masakazu Imanari met Kim Jong-Man in a featherweight (DEEP Championship) title defense fight. Imanari was 31 years old and with a record of 12-5-2 (9), and Jong-Man was 29 years old and with a record of 20-4-1 (17). Imanari stopped Kim Jong-Man via 1st-round submission and successfully defended his title.
On December 2, 2005 Masakazu Imanari fought Yoshiro Maeda in a featherweight title fight for Maeda's DEEP Championship title. Imanari was 29 years old and with a record of 9-4-2 (6), and Maeda was 24 years old and with a record of 17-1-1 (11). Imanari stopped Yoshiro Maeda via 3rd-round submission and is crowned the new DEEP featherweight champion.
On April 23, 2016 Masakazu Imanari faced off against Nam Phan in a featherweight bout at age 40. He was coming in with a record of 33-15-2 (24), and Phan was 33 years old and with a record of 21-15 (14). Imanari stopped Nam Phan via submission.
On February 22, 2019 Masakazu Imanari faced off against Kwon Won-il in a featherweight bout at age 43. He was coming in with a record of 38-18-2 (28), and Won-il was 23 years old and with a record of 5-0 (4). Imanari stopped Kwon Won-il via submission.
On March 31, 2012 Masakazu Imanari faced off against Kevin Belingon in a bantamweight bout at age 36. He was coming in with a record of 25-10-2 (17), and Belingon was 24 years old and with a record of 9-0 (5). Imanari stopped Kevin Belingon via submission.
On December 2, 2005 Masakazu Imanari faced off against Mike Brown in a featherweight bout at age 29. He was coming in with a record of 8-4-2 (5), and Brown was 30 years old and with a record of 12-3 (9). Imanari stopped Mike Brown via submission.
On August 18, 2012 Masakazu Imanari faced off against Masahiro Oishi in a bantamweight bout at age 36. He was coming in with a record of 26-11-2 (18), and Oishi was 43 years old and with a record of 22-16-9 (16). Imanari stopped Masahiro Oishi via submission.
On May 29, 2011 Masakazu Imanari faced off against Kenji Osawa in a bantamweight bout at age 35. He was coming in with a record of 23-8-2 (15), and Osawa was 34 years old and with a record of 17-9-2 (6). Imanari stopped Kenji Osawa via submission.
On May 29, 2011 Masakazu Imanari faced off against Keisuke Fujiwara in a bantamweight bout at age 35. He was coming in with a record of 22-8-2 (14), and Fujiwara was 28 years old and with a record of 11-2-4 (9). Imanari won the fight via 2-round unanimous decision.
