Here is a list of Olascuaga's best fights. For a list of Olascuaga's losses, refer to "Anthony Olascuaga Losses".
On March 13, 2025 Anthony Olascuaga met Hiroto Kyoguchi in a flyweight (WBO) world-title defense fight. Olascuaga was 26 years old and with a record of 9-1 (6), and Kyoguchi was 31 years old and with a record of 19-2 (12). Olascuaga won the fight via 12-round unanimous decision and successfully defended his title.
On October 14, 2024 Anthony Olascuaga met Jonathan González in a flyweight (WBO) world-title defense fight. Olascuaga was 25 years old and with a record of 8-1 (6), and González was 33 years old and with a record of 28-3-1 (14). Olascuaga stopped Jonathan González via 1st-round TKO and successfully defended his title.
On December 17, 2025 Anthony Olascuaga met Taku Kuwahara in a flyweight (WBO) world-title defense fight. Olascuaga was 26 years old and with a record of 11-1 (8), and Kuwahara was 30 years old and with a record of 14-2 (9). Olascuaga stopped Taku Kuwahara via 4th-round TKO and successfully defended his title.
On July 20, 2024 Anthony Olascuaga fought Riku Kano in a flyweight world-title fight for the WBO title. Olascuaga was 25 years old and with a record of 7-1 (5). Olascuaga stopped Riku Kano via 3rd-round KO and is crowned the new flyweight world champion.
On October 14, 2022 Anthony Olascuaga faced off against Marco Sustaita in a flyweight bout at age 23. He was coming in with a record of 5-0 (3). Olascuaga stopped Marco Sustaita via TKO.
On September 11, 2025 Anthony Olascuaga met Juan Carlos Camacho Jr. in a flyweight (WBO) world-title defense fight. Olascuaga was 26 years old and with a record of 10-1 (7). Olascuaga stopped Juan Carlos Camacho Jr. via 2nd-round TKO and successfully defended his title.