Alex Rins began riding at just six years old. In 2012, he joined the Moto3 World Championship as part of Team Estrella Galicia 0.0 and already displayed glimpses of his talent in his second GP in Jerez, where he claimed pole position. At Le Mans, under challenging conditions, he proved his talent by achieving his first world championship podium after starting from the 26th position. He finished the season in 4th place, earning the Rookie of the Year prize, too.

In 2013, he secured six wins and five podiums, contending for the title until the last corner of the final race, where he was overtaken by Viñales. In 2014, he finished third in the Moto3 World Championship.

In 2015, he made the leap to Moto2, achieving second place and seizing the Rookie of the Year prize, adding 2 wins, 10 podiums, and 3 poles in his first season in the intermediate category.

2017 marked his MotoGP debut, showcasing his talent by competing with the front runners.

In 2019, he claimed his first win in the world championship in the third race of the season. The year 2020 proved exceptional for Alex, accumulating 4 podium finishes and securing 3rd place in the MotoGP World Championship.

The 2021 season did not meet his expectations, finishing 13th in the championship. His goal for 2022 is to return to the pace and speed he had in 2020.

In 2022, Alex finished the season in seventh position with 173 points. He kicked off the season impressively with a third-place finish in Argentina and a second-place finish in Austin. After some difficult races, he gave Suzuki two last wins, in Australia and the final Grand Prix in Valencia. Following this farewell with Suzuki, he joined Honda in 2023, where he had a challenging season.