Kenichi Yamamoto has 12 losses against 12 opponents on his MMA record. For a list of Yamamoto's best fights, refer to "Best fights of Kenichi Yamamoto".
On March 9, 2013 Kenichi Yamamoto faced off against Kazuo Takahashi in a light-heavyweight bout at age 36. He was coming in with a record of 5-12-2 (4), and Takahashi was 43 years old and with a record of 29-25-3 (18). Yamamoto lost the fight via 1st-round KO.
On October 27, 2012 Kenichi Yamamoto faced off against Keiichiro Yamamiya in a light-heavyweight bout at age 36. He was coming in with a record of 5-11-2 (4), and Yamamiya was 40 years old and with a record of 42-28-10 (13). Yamamoto lost the fight via 2-round unanimous decision.
On October 15, 2011 Kenichi Yamamoto faced off against Sanae Kikuta in a light-heavyweight bout at age 35. He was coming in with a record of 5-10-2 (4), and Kikuta was 40 years old and with a record of 29-7-3 (19). Yamamoto lost the fight via 1st-round TKO.
On October 4, 2006 Kenichi Yamamoto faced off against Diego Lionel Vitosky in a light-heavyweight bout at age 30. He was coming in with a record of 5-9-2 (4). Yamamoto lost the fight via 2nd-round TKO.
On June 3, 2006 Kenichi Yamamoto faced off against Kaream Ellington in a light-heavyweight bout at age 29. He was coming in with a record of 5-8-2 (4). Yamamoto lost the fight via 1st-round TKO.
On July 19, 2004 Kenichi Yamamoto faced off against Ikuhisa Minowa in a middleweight bout at age 28. He was coming in with a record of 4-7-2 (3). Yamamoto lost the fight via 1st-round TKO.
On March 16, 2003 Kenichi Yamamoto faced off against Alexander Otsuka in a heavyweight bout at age 26. He was coming in with a record of 4-6-2 (3), and Otsuka was 31 years old and with a record of 2-12 (2). Yamamoto lost the fight via 3-round unanimous decision.
On November 24, 2002 Kenichi Yamamoto faced off against Kevin Randleman in a light-heavyweight bout at age 26. He was coming in with a record of 4-5-2 (3), and Randleman was 31 years old and with a record of 12-5 (6). Yamamoto lost the fight via 3rd-round TKO.
On December 21, 2001 Kenichi Yamamoto faced off against Genki Sudo in a lightweight bout at age 25. He was coming in with a record of 4-4-2 (3), and Sudo was 23 years old and with a record of 6-2-1 (4). Yamamoto lost the fight via 2nd-round submission.
On December 16, 2000 Kenichi Yamamoto fought Pat Miletich in a welterweight title fight for Miletich's UFC Championship title. Yamamoto was 24 years old and with a record of 4-3 (3), and Miletich was 32 years old and with a record of 26-4-2 (20). Yamamoto lost the fight via 2nd-round submission.
On December 23, 1998 Kenichi Yamamoto faced off against Kiyoshi Tamura in a heavyweight bout at age 22. He was coming in with a record of 1-2 (1), and Tamura was 29 years old and with a record of 12-3-1 (11). Yamamoto lost the fight via 2nd-round TKO.
On June 27, 1998 Kenichi Yamamoto faced off against Masayuki Naruse in a light-heavyweight bout at age 22. He was coming in with a record of 1-1 (1). Yamamoto lost the fight via 1st-round submission.