Chizzy began his career in the British Darts Organisation (BDO) and was the runner-up in their World Championship in 2010. He switched to the PDC a year later where he has since reached six major TV finals and won 17 PDC ranking events. 

Since his switch to the PDC, Chisnall has been a staple in the top 20 of the rankings, appearing in the Premier League five times, and representing England at the PDC World Cup on three occasions.