Ben Nguyen has nine losses against nine opponents on his MMA record. For a list of Nguyen's best fights, refer to "Best fights of Ben Nguyen".
On April 21, 2019 Ben Nguyen faced off against Kyoji Horiguchi in a flyweight bout at age 30. He was coming in with a record of 18-9 (15), and Horiguchi was 28 years old and with a record of 26-2 (16). Nguyen lost the fight via 1st-round KO.
On December 2, 2018 Ben Nguyen faced off against Wilson Reis in a flyweight bout at age 30. He was coming in with a record of 18-8 (15), and Reis was 33 years old and with a record of 22-9 (10). Nguyen lost the fight via 3-round unanimous decision.
On February 11, 2018 Ben Nguyen faced off against Jussier Formiga in a flyweight bout at age 29. He was coming in with a record of 18-7 (15), and Formiga was 32 years old and with a record of 20-5 (9). Nguyen lost the fight via 3rd-round choke-out.
On July 13, 2016 Ben Nguyen faced off against Louis Smolka in a flyweight bout at age 27. He was coming in with a record of 16-6 (14), and Smolka was 24 years old and with a record of 10-1 (8). Nguyen lost the fight via 2nd-round TKO.
On August 18, 2010 Ben Nguyen faced off against Chavalit Sityodtong at age 22. He was coming in with a record of 7-5 (7). Nguyen lost the fight via 2nd-round TKO.
On May 15, 2010 Ben Nguyen faced off against Josh Phillips at age 21. He was coming in with a record of 6-4 (6). Nguyen lost the fight via 4th-round TKO.
On November 13, 2009 Ben Nguyen faced off against Eric Perez at age 21. He was coming in with a record of 6-3 (6). Nguyen lost the fight via 2nd-round TKO.
On February 6, 2009 Ben Nguyen faced off against Alexis Vila at age 20. He was coming in with a record of 6-2 (6), and Vila was 37 years old and with a record of 4-0 (3). Nguyen lost the fight via 2nd-round KO.
On December 2, 2006 Ben Nguyen faced off against Austin Peterson at age 18. He was coming in with a record of 0-1 (0). Nguyen lost the fight via 2nd-round submission.
