Here is a list of Arroyo's best fights. For a list of Arroyo's losses, refer to "McWilliams Arroyo Losses".
On February 24, 2018 McWilliams Arroyo faced off against Carlos Cuadras in a super-flyweight bout at age 32. He was coming in with a record of 17-3 (14), and Cuadras was 29 years old and with a record of 36-2-1 (27). Arroyo won the fight via 10-round majority decision.
On March 10, 2012 McWilliams Arroyo faced off against Luis Maldonado at age 26. He was coming in with a record of 11-1 (9), and Maldonado was 34 years old and with a record of 36-7-1 (27). Arroyo won the fight via 10-round unanimous decision.
On June 19, 2014 McWilliams Arroyo faced off against Froilan Saludar at age 28. He was coming in with a record of 15-1 (13), and Saludar was 25 years old and with a record of 19-0-1 (12). Arroyo stopped Froilan Saludar via TKO.
