Leclerc first started his career in motorsport at the age of eight in karting. In the five seasons following, Leclerc picked up an impressive six junior category titles in France and Monaco. In his final season in go-karts, he placed second in the CIK-FIA World KZ Championship in 2013 to none other than current title rival Max Verstappen.
After a successful karting career, Leclerc made the jump to racing cars in 2014, entering the Formula Renault 2.0 Alps. The Monegasque finished the season Junior Champion and overall runner-up with 199 points.
The year following, 2015, Leclerc was racing in the FIA Formula 3 European Championship. He picked up three wins out of 33, with four poles and 13 podiums. Leclerc placed fourth, with fellow f1 driver Lance Stroll taking the Championship.
However, the next year brought the first major title to Leclerc. In 2016 he competed in the third tier of the Formula One feeder, GP3 with ART Grand Prix. Leclerc won three races in his title-winning season, at Barcelona, the Red Bull Ring and Spa. He also picked up four poles, eight podiums and 202 points - 25 more than second-placed Alex Albon.
Also in 2016, Leclerc made his first contact with Formula One. The Monegasque joined the Ferrari Driver Academy and acted as a test driver for Haas where he raced in the first practice session of the British and German Grand Prix.
The jump up to the FIA F2 Championship in 2017 brought even more fortune to Leclerc. Racing with Prema, Leclerc picked up where he left off in GP3. He picked up seven wins, including a notable showing in the Bahrain sprint race where he started sixth, fell to 14th after a pit stop and then stormed through the field to claim the win. Leclerc also claimed eight poles, ten podiums and 282 overall points, a formidable 72 points clear of second place.
Leclerc’s more than impressive junior career proved more than fruitful, with F1 team Sauber signing him for the 2018 season. He placed 13th in the driver standings, with his most noteworthy moments being a sixth-place finish in Azerbaijan, multiple seventh-place finishes and a Q3 appearance in the Brazilian rain.