Maddison played rugby at Tynedale RFC from a young age.
After school, he moved to Leeds where he studied sport and exercise science at Leeds Metropolitan.
During his time there, he played for the University for 4 years, whilst being part of Leeds Carnegie.
Having played for Mowden in between university for several seasons, Maddison signed a deal with Championship club Rotherham.
After a year at the club and 60 appearances, Maddison signed for Jersey Red in 2018.
Maddison returned to his native North East, signing a two-year deal with Newcastle Falcons in August 2019.
|2019 - present|
|2016 - 2018|
|2018 - 2021|