Kerr took up speedway in late 2009, and made his competitive debut in June the following year for
King's Lynn Young Stars' in the
National League Knock-Out Cup. Initially named as the team's number 8, towards the end of the season, having
averaged almost 6 points per match in National League matches, he was named in the main seven places in the team. He was again named in the team for the 2011 and 2012 seasons. In 2012 he rode in the
Premier League as a guest replacement for
Plymouth Devils,
Somerset Rebels and
Leicester Lions, and in November 2012 he was named in a doubling up role in the Lions team for 2013, sharing the number seven position with
Lewis Blackbird, while continuing to ride for King's Lynn in the National League. He was released before the start of the season after being offered a full-time reserve position with
Newcastle Diamonds for the
2013 Premier League speedway season. He rode for both Newcastle and King's Lynn in 2014. He was placed into a medically induced coma for three days, before finally waking and breathing on his own. After recovering he raced for Lakeside, Ipswich and Scunthorpe in 2016 and then Scunthorpe, Somerset and Poole in 2017. When the Eagles withdrew from the league due to financial issues Kerr joined the
Redcar Bears for the remainder of the 2021 season. Kerr had a testimonial meeting at King's Lynn Speedway on 20 March 2022, for ten years service to speedway. During 2022, he initially rode for King's Lynn before signing for Sheffield in the
SGB Premiership 2022. He also continued to ride for the Redcar Bears in the
SGB Championship 2022 and won the 2022
SGB Championship Pairs Championship for Redcar, with
Charles Wright. He also helped Sheffield win the League Cup and reach the Play off final. In 2023, Kerr re-signed for the Sheffield Tigers in the
SGB Premiership, where he won the league title. He also signed for
Oxford Cheetahs in the
SGB Championship 2023. For the 2024 season, he re-signed for Oxford but with their Premiership team the Spires and joined
Berwick Bandits in the Championship. Kerr re-joined Poole Pirates for the
SGB Championship 2025 and was also brought in for Sheffield to replace the injured
Tai Woffinden. == Personal life ==