Here is a list of Macário's best fights. For a list of Macário's losses, refer to "William Macário Losses".
On December 28, 2013 William Macário faced off against Bobby Voelker at age 22. He was coming in with a record of 7-1 (6), and Voelker was 34 years old and with a record of 24-10 (19). Macário won the fight via 3-round unanimous decision.
On May 10, 2019 William Macário faced off against Josh Burkman at age 27. He was coming in with a record of 10-4 (7), and Burkman was 39 years old and with a record of 28-17 (16). Macário won the fight via 3-round split decision.