William Macário has seven losses against seven opponents on his MMA record. For a list of Macário's best fights, refer to "Best fights of William Macário".
On September 25, 2022 William Macário faced off against Luan Santiago in a welterweight bout at age 31. He was coming in with a record of 11-7 (8). Macário lost the fight via 1st-round KO.
On December 18, 2021 William Macário faced off against Shimon Smotritsky in a welterweight bout at age 30. He was coming in with a record of 11-6 (8). Macário lost the fight via 2nd-round TKO.
On October 30, 2020 William Macário faced off against Rico Farrington at age 29. He was coming in with a record of 10-5 (7). Macário lost the fight via 3-round unanimous decision.
On August 10, 2018 William Macário faced off against Ramiz Brahimaj at age 27. He was coming in with a record of 9-4 (7), and Brahimaj was 25 years old and with a record of 6-1 (6). Macário lost the fight via 2nd-round choke-out.
On February 22, 2015 William Macário faced off against Matt Dwyer at age 23. He was coming in with a record of 7-3 (6), and Dwyer was 25 years old and with a record of 7-2 (7). Macário lost the fight via 1st-round KO.
On October 25, 2014 William Macário faced off against Neil Magny at age 23. He was coming in with a record of 7-2 (6), and Magny was 27 years old and with a record of 12-3 (5). Macário lost the fight via 3rd-round TKO.
On June 8, 2013 William Macário faced off against Leonardo Santos at age 21. He was coming in with a record of 6-1 (6), and Santos was 33 years old and with a record of 11-3 (6). Macário lost the fight via 2nd-round submission.
