Starting out his career in karting at 10-years-of-age, Redhill High School GCSE pupil Harri went on to impress in Mini Max in 2019 and was the top Rookie in the British Karting Championship that year. After becoming a Ginetta Junior Scholarship finalist in 2020, the Welsh youngster embarked on his first season in cars in the category in 2021 and finished 11th in the standings. Becoming part of the Motorbase Driver Academy ahead of his second season in Ginetta Junior, Harri has been a revelation thus far in 2022 as a multiple race winner.