Norifumi Yamamoto has six losses against six opponents on his MMA record. For a list of Yamamoto's best fights, refer to "Best fights of Norifumi Yamamoto".
On February 26, 2012 Norifumi Yamamoto faced off against Vaughan Lee in a bantamweight bout at age 34. He was coming in with a record of 18-6 (15), and Lee was 29 years old and with a record of 11-7-1 (10). Yamamoto lost the fight via 1st-round submission.
On November 12, 2011 Norifumi Yamamoto faced off against Darren Uyenoyama in a bantamweight bout at age 34. He was coming in with a record of 18-5 (15), and Uyenoyama was 32 years old and with a record of 6-3 (4). Yamamoto lost the fight via 3-round unanimous decision.
On February 5, 2011 Norifumi Yamamoto faced off against Demetrious Johnson in a bantamweight bout at age 33. He was coming in with a record of 18-4 (15), and Johnson was 24 years old and with a record of 5-1 (4). Yamamoto lost the fight via 3-round unanimous decision.
On December 31, 2009 Norifumi Yamamoto faced off against Masanori Kanehara in a featherweight bout at age 32. He was coming in with a record of 17-3 (14), and Kanehara was 27 years old and with a record of 14-5-5 (10). Yamamoto lost the fight via 3-round unanimous decision.
On May 26, 2009 Norifumi Yamamoto faced off against Joe Warren in a featherweight bout at age 32. He was coming in with a record of 17-2 (14), and Warren was 32 years old and with a record of 1-0 (1). Yamamoto lost the fight via 2-round split decision.
On May 5, 2002 Norifumi Yamamoto faced off against Stephen Palling in a featherweight bout at age 25. He was coming in with a record of 3-1 (2). Yamamoto lost the fight via 1st-round TKO.
