Naoyuki Kotani losses
Over 22 years as a professional, Naoyuki Kotani has compiled a 37-18-7 (33) record, including two title fights. He has 18 losses, two of them in title fights.
18. Naoyuki Kotani loses to Shin Haraguchi via KO
On February 11, 2023 Naoyuki Kotani fought Shin Haraguchi for the vacant GRACHAN lightweight title. Kotani was 41 years old with a record of 37-17-7, and Haraguchi was 0 with a record of 0-0. Kotani was coming off a win. Haraguchi stopped Kotani via TKO in the 1st round. Failed to win the vacant title.
17. Naoyuki Kotani loses to Koshi Matsumoto via KO
On May 6, 2019 Naoyuki Kotani fought Koshi Matsumoto for the vacant Shooto lightweight title. Kotani was 37 years old with a record of 36-16-7, and Matsumoto was 0 with a record of 0-0. Kotani was on a 2-fight winning streak. Matsumoto stopped Kotani via TKO in the 4th round. Failed to win the vacant title.
16. Naoyuki Kotani loses to Marif Piraev via unanimous decision
On December 17, 2017 Naoyuki Kotani faced Marif Piraev. Kotani was 36 years old with a record of 34-15-7, and Piraev was 0 with a record of 0-0. Kotani was coming off a loss. Kotani lost via unanimous decision. Went the distance with Piraev.
15. Naoyuki Kotani loses to Yuki Kawana via majority decision
On October 15, 2017 Naoyuki Kotani faced Yuki Kawana. Kotani was 35 years old with a record of 34-14-7, and Kawana was 0 with a record of 0-0. Kotani was coming off a win. Kotani lost via majority decision. Went the distance with Kawana.
14. Naoyuki Kotani loses to Dmitriy Parubchenko via KO
On June 12, 2016 Naoyuki Kotani faced Dmitriy Parubchenko. Kotani was 34 years old with a record of 33-13-7, and Parubchenko was 0 with a record of 0-0. Kotani was on a 3-fight losing streak. Parubchenko stopped Kotani via TKO in the 2nd round.
13. Naoyuki Kotani loses to Kajan Johnson via unanimous decision
On September 27, 2015 Naoyuki Kotani faced Kajan Johnson in a lightweight bout. Kotani was 33 years old with a record of 33-12-7, and Johnson was 31 with a record of 20-12-1. Kotani was on a 2-fight losing streak, while Johnson was coming off a win. Kotani lost via unanimous decision. Went the distance with Johnson.
12. Naoyuki Kotani loses to Yan Cabral via KO
On October 25, 2014 Naoyuki Kotani faced Yan Cabral in a lightweight bout. Kotani was 32 years old with a record of 33-11-7, and Cabral was 31 with a record of 11-1. Both Kotani and Cabral were coming off a loss. Cabral submitted Kotani via rear-naked choke in the 2nd round.
11. Naoyuki Kotani loses to Norman Parke via KO
On July 19, 2014 Naoyuki Kotani faced Norman Parke in a lightweight bout. Kotani was 32 years old with a record of 33-10-7, and Parke was 27 with a record of 19-2-1. Kotani was on a 13-fight winning streak. Parke stopped Kotani via TKO in the 2nd round.
10. Naoyuki Kotani loses to Jorge Masvidal via split decision
On April 25, 2010 Naoyuki Kotani faced Jorge Masvidal in a lightweight bout. Kotani was 28 years old with a record of 20-9-7, and Masvidal was 25 with a record of 19-5. Masvidal was coming off a loss. Kotani lost via split decision. Went the distance with Masvidal.
9. Naoyuki Kotani loses to Kuniyoshi Hironaka via KO
On May 24, 2009 Naoyuki Kotani faced Kuniyoshi Hironaka in a lightweight bout. Kotani was 27 years old with a record of 18-8-6, and Hironaka was 32 with a record of 12-6. Kotani was coming off a win, while Hironaka was coming off a loss. Hironaka submitted Kotani via reverse full-nelson in the 2nd round.
8. Naoyuki Kotani loses to Koji Oishi via unanimous decision
On October 1, 2008 Naoyuki Kotani faced Koji Oishi. Kotani was 26 years old with a record of 17-7-6, and Oishi was 0 with a record of 0-0. Kotani lost via unanimous decision. Went the distance with Oishi.
7. Naoyuki Kotani loses to Dennis Siver via KO
On September 8, 2007 Naoyuki Kotani faced Dennis Siver in a welterweight bout. Kotani was 25 years old with a record of 17-6-5, and Siver was 28 with a record of 10-4. Both Kotani and Siver were coming off a loss. Siver stopped Kotani via KO in the 2nd round.
6. Naoyuki Kotani loses to Thiago Tavares via unanimous decision
On April 5, 2007 Naoyuki Kotani faced Thiago Tavares in a lightweight bout. Kotani was 25 years old with a record of 17-5-5, and Tavares was 22 with a record of 10-0. Kotani was coming off a win and Tavares was on an undefeated 10-fight winning streak. Kotani lost via unanimous decision. Went the distance with Tavares.
5. Naoyuki Kotani loses to Luiz Azeredo via KO in 11 seconds
On September 25, 2005 Naoyuki Kotani faced Luiz Azeredo in a lightweight bout. Kotani was 23 years old with a record of 14-4-3, and Azeredo was 29 with a record of 9-4. Azeredo was coming off a loss. Azeredo stopped Kotani via KO in the 1st round.
4. Naoyuki Kotani loses to Roger Huerta via KO
On December 3, 2004 Naoyuki Kotani faced Roger Huerta in a lightweight bout. Kotani was 22 years old with a record of 14-3-2, and Huerta was 21 with a record of 6-1-1. Kotani was coming off a loss, while Huerta was on a 2-fight winning streak. Huerta stopped Kotani via TKO in the 1st round.
3. Naoyuki Kotani loses to Yves Edwards via KO
On October 15, 2004 Naoyuki Kotani faced Yves Edwards in a welterweight bout. Kotani was 22 years old with a record of 14-2-2, and Edwards was 28 with a record of 27-8-1. Kotani was on a 2-fight winning streak and Edwards was on a 4-fight winning streak. Edwards stopped Kotani via TKO in the 1st round.
2. Naoyuki Kotani loses to Marcus Aurélio via KO
On May 5, 2004 Naoyuki Kotani faced Marcus Aurélio in a lightweight bout. Kotani was 22 years old with a record of 12-1-2, and Aurélio was 30 with a record of 10-1. Kotani was coming off a loss, while Aurélio was on a 5-fight winning streak. Aurélio stopped Kotani via TKO in the 2nd round.
1. Naoyuki Kotani loses to Rich Clementi via unanimous decision
On January 11, 2004 Naoyuki Kotani faced Rich Clementi in a lightweight bout. Kotani was 22 years old with a record of 12-0-2, and Clementi was 26 with a record of 15-7-1. Kotani was on an undefeated 2-fight winning streak and Clementi was coming off a win. Kotani lost via unanimous decision.