Naoyuki Kotani has 18 losses against 18 opponents on his MMA record. For a list of Kotani's best fights, refer to "Best fights of Naoyuki Kotani".
On February 11, 2023 Naoyuki Kotani faced off against Shin Haraguchi in a lightweight bout at age 41. He was coming in with a record of 37-18-7 (30). Kotani lost the fight via 1st-round TKO.
On May 6, 2019 Naoyuki Kotani fought Koshi Matsumoto in a lightweight title fight for Matsumoto's Shooto Championship title. Kotani was 37 years old and with a record of 36-17-7 (30). Kotani lost the fight via 4th-round TKO.
On December 17, 2017 Naoyuki Kotani faced off against Marif Piraev at age 36. He was coming in with a record of 34-16-7 (28). Kotani lost the fight via 3-round unanimous decision.
On October 15, 2017 Naoyuki Kotani faced off against Yuki Kawana at age 35. He was coming in with a record of 34-15-7 (28). Kotani lost the fight via 3-round majority decision.
On June 12, 2016 Naoyuki Kotani faced off against Dmitriy Parubchenko at age 34. He was coming in with a record of 33-14-7 (27). Kotani lost the fight via 2nd-round TKO.
On September 27, 2015 Naoyuki Kotani faced off against Kajan Johnson at age 33. He was coming in with a record of 33-13-7 (27), and Johnson was 31 years old and with a record of 20-12-1 (15). Kotani lost the fight via 3-round unanimous decision.
On October 25, 2014 Naoyuki Kotani faced off against Yan Cabral at age 32. He was coming in with a record of 33-12-7 (27), and Cabral was 31 years old and with a record of 11-1 (10). Kotani lost the fight via 2nd-round submission.
On July 19, 2014 Naoyuki Kotani faced off against Norman Parke at age 32. He was coming in with a record of 33-11-7 (27), and Parke was 27 years old and with a record of 19-2-1 (15). Kotani lost the fight via 2nd-round TKO.
On April 25, 2010 Naoyuki Kotani faced off against Jorge Masvidal at age 28. He was coming in with a record of 20-10-7 (16), and Masvidal was 25 years old and with a record of 19-5 (11). Kotani lost the fight via 3-round split decision.
On May 24, 2009 Naoyuki Kotani faced off against Kuniyoshi Hironaka at age 27. He was coming in with a record of 18-9-6 (14), and Hironaka was 32 years old and with a record of 12-6 (7). Kotani lost the fight via 2nd-round submission.
On October 1, 2008 Naoyuki Kotani faced off against Koji Oishi at age 26. He was coming in with a record of 17-8-6 (13). Kotani lost the fight via 3-round unanimous decision.
On September 8, 2007 Naoyuki Kotani faced off against Dennis Siver at age 25. He was coming in with a record of 17-7-5 (13), and Siver was 28 years old and with a record of 10-4 (8). Kotani lost the fight via 2nd-round KO.
On April 5, 2007 Naoyuki Kotani faced off against Thiago Tavares at age 25. He was coming in with a record of 17-6-5 (13), and Tavares was 22 years old and with a record of 10-0 (10). Kotani lost the fight via 3-round unanimous decision.
On September 25, 2005 Naoyuki Kotani faced off against Luiz Azeredo at age 23. He was coming in with a record of 14-5-3 (10), and Azeredo was 29 years old and with a record of 9-4 (7). Kotani lost the fight via 1st-round KO.
On December 3, 2004 Naoyuki Kotani faced off against Roger Huerta at age 22. He was coming in with a record of 14-4-2 (10), and Huerta was 21 years old and with a record of 6-1-1 (4). Kotani lost the fight via 1st-round TKO.
On October 15, 2004 Naoyuki Kotani faced off against Yves Edwards at age 22. He was coming in with a record of 14-3-2 (10), and Edwards was 28 years old and with a record of 27-8-1 (22). Kotani lost the fight via 1st-round TKO.
On May 5, 2004 Naoyuki Kotani faced off against Marcus Aurélio at age 22. He was coming in with a record of 12-2-2 (8), and Aurélio was 30 years old and with a record of 10-1 (9). Kotani lost the fight via 2nd-round TKO.
On January 11, 2004 Naoyuki Kotani faced off against Rich Clementi at age 22. He was coming in with a record of 12-1-2 (8), and Clementi was 26 years old and with a record of 15-7-1 (14). Kotani lost the fight via 2-round unanimous decision.
