Shigeki Osawa has six losses against six opponents on his MMA record. For a list of Osawa's best fights, refer to "Best fights of Shigeki Osawa".
On October 4, 2014 Shigeki Osawa faced off against Joji Mikami at age 28. He was coming in with a record of 11-6-3 (6). Osawa lost the fight via 1st-round KO.
On October 5, 2013 Shigeki Osawa faced off against Akiyo Nishiura at age 27. He was coming in with a record of 9-5-2 (5), and Nishiura was 30 years old and with a record of 11-8-1 (5). Osawa lost the fight via 3-round split decision.
On October 27, 2012 Shigeki Osawa faced off against Yoshifumi Nakamura at age 26. He was coming in with a record of 8-4-2 (4). Osawa lost the fight via 3-round majority decision.
On March 10, 2012 Shigeki Osawa faced off against Yusuke Yachi at age 25. He was coming in with a record of 7-3-2 (3). Osawa lost the fight via 3-round unanimous decision.
On November 5, 2011 Shigeki Osawa faced off against Akitoshi Tamura at age 25. He was coming in with a record of 6-2-2 (2), and Tamura was 31 years old and with a record of 15-11-2 (5). Osawa lost the fight via 3-round unanimous decision.
On November 7, 2009 Shigeki Osawa faced off against Ronnie Mann at age 23. He was coming in with a record of 4-1 (1), and Mann was 23 years old and with a record of 16-3-1 (13). Osawa lost the fight via 3-round unanimous decision.
