Gardner has enjoyed a successful career in the Grand Prix paddock, which began with three wildcard entries in the 2014 Moto3 World Championship. After completing his first full season the following year, the Australian impressed on his Moto2 debut as a replacement rider at Barcelona, which saw him retained for the remaining 2016 rounds.
Gardner became a consistent points-scorer in the championship over the next few seasons, and in 2019 he scored a breakthrough podium with second in Argentina. In 2020, he was one of the Moto2 standouts, celebrating four podiums including a stunning maiden victory at the Portimão finale from pole position, ending the season sixth in the standings.
In 2021, Gardner enjoyed several exceptional performances, winning five times and taking 12 podiums, while he placed inside the top 10 in every race he finished. He was crowned the Moto2 World Champion at the Valencia finale, before being promoted to the premier MotoGP class for the 2022 season.
In his MotoGP rookie season, Gardner has demonstrated strong progression and a level of determination that will serve him well in 2023, as he takes on a new challenge aboard the race proven Yamaha R1 in the GYTR GRT Yamaha WorldSBK Team.