Antonin made his international début taking part in the Junior World Championships in 2010 where he won the silver medal in relay.
In March 2014 he made his World Cup début in Oslo thanks to his great performance in the IBU Cup 1. He had come in 25th in pursuit racing and 24th in the individual event.<br>He competed in the World Cup events in December 2017 and won his first place on the podium in the French stage at Grand Bornand.
In 2022, Antonin was selected to represent France at the Olympic Games in Beijing.
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.