[3] In 2016, Da Costa won the silver medal in the under-21 men's 67 kg event at the EKF Cadet, Junior and under-21 Championships held in Limassol, Cyprus.

[8] In 2017, Da Costa won the silver medal in the men's team kumite event at the European Karate Championships held in İzmit, Turkey.

[11] The following year, Da Costa also won the gold medal in the men's kumite 67 kg event at the 2019 European Karate Championships held in Guadalajara, Spain.

[13][14] In May 2021, Da Costa won one of the bronze medals in the men's kumite 67 kg event at the European Karate Championships held in Poreč, Croatia.

[20][21] In November 2021, he won the gold medal in the men's 67 kg event at the World Karate Championships held in Dubai, United Arab Emirates.