[1] He competed in the men's lightweight event at the 2020 Summer Olympics where he won the bronze medal.

Garside competed in the 63.5kg class at the 2024 Summer Olympics, losing on points in the Round of 16 against Hungarian Richárd Kovács.

[4] He wore nail polish during the 2020 Summer Olympics, citing his desire to defy gender stereotypes.

[4] Garside is also known for challenging gender norms, often wearing skirts and dresses to awards shows and ceremonies.

Though he has received a lot of backlash over this, Garside has stated that he hopes he is being a good advocate for the LGBTQIA+ community.