Antonin made his international debut at the Junior World Championships in 2010, where he won a silver medal with the relay team. In March 2014, he made his World Cup debut in Oslo, thanks to his strong performances in the IBU Cup, finishing 25th in the pursuit and 24th in the individual event. He joined the World Cup circuit in December 2017 and celebrated his first podium finish during the French leg at Le Grand Bornand. In 2022, Antonin was selected to represent France at the Beijing Olympics.
His Achievements
- Bronze Medal at the European Biathlon Championships in the sprint event, 2015.
- 10 Podiums in World Cup:
- 5 Individual Podiums: 2 second places, 3 third places.
- 3 Relay Podiums: 3 second places.
- 2 Mixed Relay Podiums: 1 victory, 1 third place.
- 3rd Place in the World Cup Relay in Hochfilzen, 2019.
- 11th in the World Rankings for the 2018-2019 season.
- Vice Champion in the mass start at the World Championships, 2019.
- Gold Medal in the Mixed Relay at the World Championships in Pokljuka, February 2021.
