Mario Aji was introduced to motocross by his father and started racing at the age of ten, before making the switch to asphalt. In 2018, the Indonesian competed in the Idemitsu Asia Talent Cup, a campaign he finished 5th with 4 podiums and a win, alongside his participation in the Asia Road Race Championship in the 250cc class, where he was 6th. For the next three seasons he combined the Red Bull MotoGP™ Rookies Cup with the FIM CEV Repsol in Moto3™. In these respective championships he was consistently in the top 15. For 2022, Honda Team Asia handed him a full time seat. The highlight of his rookie campaign came at his home Grand Prix in Indonesia, when he earned a front row start. He managed to crack the point scoring positions twice in his debut year, and remaining within the fold of Honda Team Asia for 2023, he’ll be looking to further his development throughout the year.