At the 2020 Nordic Junior World Ski Championships in Oberwiesenthal, Germany, Léveillé was part of the quartet who won silver in the 4 × 5 kilometre relay event, becoming the first Canadians to win a relay medal at the event.[3]The following year Léveillé won bronze in the 10 kilometre freestyle event, becoming only the third Canadian to win an individual medal in the history of the event.[4][5][6]
Senior
Léveillé made his senior debut as part of the 2021–22 FIS Cross-Country World Cup in Ruka, Finland. Léveillé's top placement was a 17th-place finish in the 15 km event (6th fastest time of the day).[7]