Here is a list of Yamamiya's best fights. For a list of Yamamiya's losses, refer to "Keiichiro Yamamiya Losses".
On September 24, 2000 Keiichiro Yamamiya fought Ikuhisa Minowa in a light-heavyweight title fight for Minowa's Pancrase Light Heavyweight Championship title. Yamamiya was 28 years old and with a record of 22-13-5 (7), and Minowa was 24 years old and with a record of 16-11-6 (12). Yamamiya won the fight via 2-round unanimous decision and is crowned the new Pancrase light-heavyweight champion.
On January 17, 1997 Keiichiro Yamamiya faced off against Brian Gassaway at age 24. He was coming in with a record of 3-5 (0), and Gassaway was 24 years old and with a record of 3-3 (2). Yamamiya won the fight via 1-round unanimous decision.
On September 6, 1997 Keiichiro Yamamiya faced off against Minoru Suzuki at age 25. He was coming in with a record of 10-7-1 (3), and Suzuki was 29 years old and with a record of 22-11 (20). Yamamiya won the fight via 1-round unanimous decision.
On March 1, 1998 Keiichiro Yamamiya faced off against Minoru Suzuki at age 25. He was coming in with a record of 12-9-3 (3), and Suzuki was 29 years old and with a record of 22-13 (20). Yamamiya won the fight via 1-round majority decision.
On July 25, 2004 Keiichiro Yamamiya faced off against Chael Sonnen in a light-heavyweight bout at age 32. He was coming in with a record of 32-18-8 (11), and Sonnen was 27 years old and with a record of 12-3-1 (4). Yamamiya won the fight via 3-round majority decision.
On December 4, 2000 Keiichiro Yamamiya faced off against Denis Kang in a light-heavyweight bout at age 28. He was coming in with a record of 23-13-5 (7), and Kang was 23 years old and with a record of 5-2 (5). Yamamiya won the fight via 2-round majority decision.
On January 23, 2000 Keiichiro Yamamiya faced off against Chris Lytle in a light-heavyweight bout at age 27. He was coming in with a record of 18-13-5 (6), and Lytle was 25 years old and with a record of 3-2-3 (3). Yamamiya won the fight via 1-round unanimous decision.
On April 4, 2010 Keiichiro Yamamiya faced off against Takenori Sato in a light-heavyweight bout at age 37. He was coming in with a record of 37-25-9 (12), and Sato was 24 years old and with a record of 9-7-5 (5). Yamamiya won the fight via 2-round majority decision.
On December 3, 2011 Keiichiro Yamamiya faced off against Shingo Suzuki in a welterweight bout at age 39. He was coming in with a record of 41-27-10 (13). Yamamiya stopped Shingo Suzuki via KO.
On July 20, 1997 Keiichiro Yamamiya faced off against Les Johnston at age 25. He was coming in with a record of 6-7-1 (2). Yamamiya stopped Les Johnston via submission.
