From a promising MX career—where he took the 2008 EMX250 runner-up title and an MX2 GP podium on home soil in 2009—Larrieu successfully transitioned to enduro in 2013. 

Most notably, he won the 2019 E2 world title with TM Racing and claimed three World Championship runner-up finishes. He also made ISDE history: winning the World Trophy with Team France in 2017, when he was the event’s outright fastest rider, and topping the E3 individual classification in 2023.