Šapina won one of the bronze medals in the men's middleweight event at the 2019 World Taekwondo Championships held in Manchester, United Kingdom.

In 2021, he won one of the bronze medals in the men's 87 kg event at the European Taekwondo Championships held in Sofia, Bulgaria.

[2] He competed in the men's +80 kg event where he was eliminated in his second match by Sun Hongyi of China.

[3] Šapina won the gold medal in the men's +80 kg event at the 2022 Mediterranean Games held in Oran, Algeria.

[4] He won the silver medal in the men's middleweight event at the 2023 World Taekwondo Championships held in Baku, Azerbaijan.