In 2013 Sam won the Supertwin Championship and in 2014 the Aprilia RRV450 Championship. Moving to the European Junior Cup at the end of that year. EJC runs as part of the World Superbike calendar and Sam performed well earning pole positions and podium finishes in that year.
2016 saw Sam return to racing in the UK and in arguably one of the most competitive race series on the planet the British Supersport Championship. Sam raced for 3 seasons in the class earning podium results and highest privateer in 2018 with 7th in the championship.
2019 saw Sam move up to the FIM CEV Repsol Moto2 European Championship on a privately entered Kalex machine, with the step up to the AGR Team in August 2020 to run with the team in 2021 and fight for the podium.