[2] Higa made his professional debut in June 2014, defeating Saengkeng Saknarong by technical knockout less than a minute into the first round.
[3] On 2017, Higa won a world championship in his first try, defeating Juan Hernández by technical knockout to become the WBC flyweight title.
Hernández had won the title earlier that year against Nawaphon Por Chokchai and was scheduled to make his first defense against Higa.
[6] On 15 April, 2018, Higa defended his WBC flyweight title for the third time in a row against challenger Cristofer Rosales.
[9] Higa is scheduled to challenge Seiya Tsutsumi for his WBA bantamweight title at Ariake Arena in Tokyo, Japan on February 24, 2025.