Here is a list of Yamaguchi's best fights. For a list of Yamaguchi's losses, refer to "Mei Yamaguchi Losses".
On May 18, 2014 Mei Yamaguchi faced off against Yukiko Seki in a atomweight bout at age 31. She was coming in with a record of 12-7-1 (5). Yamaguchi stopped Yukiko Seki via choke-out.
On April 3, 2011 Mei Yamaguchi faced off against Tomomi Sunaba in a featherweight bout at age 28. She was coming in with a record of 7-2-1 (3). Yamaguchi won the fight via 2-round majority decision.
On May 17, 2019 Mei Yamaguchi faced off against Laura Balin in a strawweight bout at age 36. She was coming in with a record of 20-11-1 (10). Yamaguchi stopped Laura Balin via submission.
On May 31, 2015 Mei Yamaguchi faced off against Satomi Takano in a featherweight bout at age 32. She was coming in with a record of 15-8-1 (7). Yamaguchi stopped Satomi Takano via TKO.
On June 30, 2017 Mei Yamaguchi faced off against Jenny Huang in a atomweight bout at age 34. She was coming in with a record of 16-10-1 (8). Yamaguchi stopped Jenny Huang via submission.
On May 3, 2011 Mei Yamaguchi faced off against Akiko Naito in a featherweight bout at age 28. She was coming in with a record of 8-2-1 (4). Yamaguchi stopped Akiko Naito via submission.
On February 21, 2015 Mei Yamaguchi faced off against Miyoko Kusaka in a featherweight bout at age 32. She was coming in with a record of 13-8-1 (6). Yamaguchi stopped Miyoko Kusaka via KO.
On May 31, 2015 Mei Yamaguchi faced off against Mina Kurobe in a featherweight bout at age 32. She was coming in with a record of 14-8-1 (6). Yamaguchi won the fight via 2-round unanimous decision.
On May 25, 2013 Mei Yamaguchi faced off against Seo Ye Jung in a featherweight bout at age 30. She was coming in with a record of 11-5-1 (5). Yamaguchi stopped Seo Ye Jung via submission.