Here is a list of Boku's best fights. For a list of Boku's losses, refer to "Kotetsu Boku Losses".
On November 23, 2009 Kotetsu Boku faced off against Yukio Sakaguchi in a welterweight bout at age 32. He was coming in with a record of 15-6-2 (6), and Sakaguchi was 36 years old and with a record of 5-5 (5). Boku stopped Yukio Sakaguchi via KO.
On September 21, 2003 Kotetsu Boku faced off against Naoki Matsushita at age 26. He was coming in with a record of 5-3 (3), and Matsushita was 27 years old and with a record of 4-1-4 (0). Boku stopped Naoki Matsushita via TKO.
On November 11, 2016 Kotetsu Boku faced off against Timofey Nastyukhin in a featherweight bout at age 39. He was coming in with a record of 25-11-2 (13), and Nastyukhin was 26 years old and with a record of 10-2 (10). Boku stopped Timofey Nastyukhin via TKO.
On March 13, 2002 Kotetsu Boku faced off against Mitsuo Matsumoto at age 24. He was coming in with a record of 3-0 (1), and Matsumoto was 30 years old and with a record of 4-6-1 (0). Boku won the fight via 2-round unanimous decision.
On May 31, 2015 Kotetsu Boku faced off against Juntaro Ushiku in a featherweight bout at age 38. He was coming in with a record of 22-10-2 (10). Boku stopped Juntaro Ushiku via KO.
On January 10, 2011 Kotetsu Boku faced off against Yukinari Tamura in a welterweight bout at age 33. He was coming in with a record of 18-6-2 (6), and Tamura was 29 years old and with a record of 9-4-5 (4). Boku won the fight via 3-round unanimous decision.
On September 7, 2005 Kotetsu Boku faced off against Hermes França in a welterweight bout at age 28. He was coming in with a record of 9-3 (3), and França was 31 years old and with a record of 10-4 (9). Boku won the fight via 2-round majority decision.
On January 24, 2004 Kotetsu Boku faced off against Kohei Yasumi at age 26. He was coming in with a record of 6-3 (3), and Yasumi was 25 years old and with a record of 6-3-2 (2). Boku won the fight via 3-round unanimous decision.
On March 14, 2014 Kotetsu Boku faced off against Arnaud Lepont in a lightweight bout at age 36. He was coming in with a record of 21-9-2 (9). Boku stopped Arnaud Lepont via KO.
On July 16, 2012 Kotetsu Boku faced off against Shin Kochiwa in a welterweight bout at age 35. He was coming in with a record of 19-7-2 (7). Boku stopped Shin Kochiwa via KO.
