He competed at the 2024 Summer Olympics in the inaugural men's Formula Kite event, where he reached the finals and won the gold medal.

[2][3] He also played football as a youth, being a member of the club UNION Soccerclub Perchtoldsdorf through the U15 level.

[1] Bontus, a member of the Yacht Club Podersdorf, began the switch to racing in 2021: "I called the Austrian Federation in the summer of 2021 and said I was interested in aiming for the Olympics.

"[1][2] Initially competing with the Levitaz foil package, Bontus switched to Chubanga and his performances improved.

[2] He began being coached by Luca Bursic in 2022 and in 2023, he placed fourth at the World Championships, thus qualifying for the inaugural men's Formula Kite event at the 2024 Summer Olympics.