He represented Switzerland at the 2024 Summer Paralympics, where he won a gold medal in the 100 metre breaststroke SB5 event.

He started swimming at the age of 6, inspired by his older sister, Jasmine.

He earned a silver medal in the 100 m breaststroke SB5 and reached the finals in the 100 m freestyle S6.

[6] At the 2023 World Para Swimming Championships in Manchester, England, McCrea participated in the 100 m breaststroke SB5, where he won a silver medal, and the 100 m freestyle S6 events.

[6] At the 2024 World Para Swimming European Open Championships in Funchal, he won a bronze medal in the 100 m breaststroke SB5 event and he competed in the 200 m individual medley SM6 event.