On the CDC Pro Tour, he finished as the best Canadian player and qualified for the 2020 PDC World Darts Championship.

[4] On the 2020 CDC Pro Tour he finished as the best Canadian player and qualified for the 2021 PDC World Darts Championship, where lost 3-2 to Scott Waites in the first round.

The 2024 PDC World Darts Championship saw Campbell win his first match at the competition, defeating Lourence Ilagan 3–2 in the first round.

[9][10] In 2024, Campbell won the North American Darts Championship by defeating Stowe Buntz 6–4 in the final.

[13] Campbell won his first-round match 3–2 against Mensur Suljović but was eliminated by Ryan Searle in the second round.