Billy Quarantillo has seven losses against seven opponents on his MMA record. For a list of Quarantillo's best fights, refer to "Best fights of Billy Quarantillo".
On December 14, 2024 Billy Quarantillo faced off against Cub Swanson in a featherweight bout at age 36. He was coming in with a record of 18-7 (13), and Swanson was 41 years old and with a record of 29-14 (17). Quarantillo lost the fight via 3rd-round KO.
On March 23, 2024 Billy Quarantillo faced off against Youssef Zalal in a featherweight bout at age 35. He was coming in with a record of 18-6 (13), and Zalal was 27 years old and with a record of 13-5-1 (10). Quarantillo lost the fight via 2nd-round submission.
On April 15, 2023 Billy Quarantillo faced off against Edson Barboza in a featherweight bout at age 34. He was coming in with a record of 17-5 (13), and Barboza was 37 years old and with a record of 22-11 (14). Quarantillo lost the fight via 1st-round KO.
On November 6, 2021 Billy Quarantillo faced off against Shane Burgos in a featherweight bout at age 32. He was coming in with a record of 16-4 (12), and Burgos was 30 years old and with a record of 13-3 (10). Quarantillo lost the fight via 3-round unanimous decision.
On December 12, 2020 Billy Quarantillo faced off against Gavin Tucker in a featherweight bout at age 32. He was coming in with a record of 15-3 (11), and Tucker was 34 years old and with a record of 12-1 (10). Quarantillo lost the fight via 3-round unanimous decision.
On April 1, 2016 Billy Quarantillo faced off against Michel Quiñones in a lightweight bout at age 27. He was coming in with a record of 7-2 (5). Quarantillo lost the fight via 1st-round TKO.
On November 8, 2013 Billy Quarantillo faced off against J.P. Reese at age 24. He was coming in with a record of 2-1 (1), and Reese was 32 years old and with a record of 9-7 (4). Quarantillo lost the fight via 3-round unanimous decision.
