卡梅倫•孟席斯

BDO

Menzies first played darts on the BDO circuit in 2006, playing in the Gibraltar Open. However, he did not emerge to prominence until 2016 where he won the British Open. He played in the 2016 World Masters but lost to Irish darts player John O'Shea in the last 80. In 2017 he became the first Scottish player to win the Scottish Open in 10 years when Gary Anderson won it. He qualified for the 2017 BDO World Trophy through the regional qualifiers. He reached the semi-finals of the 2017 World Masters before losing to eventual champion Krzysztof Ratajski. Later in 2017 he reached the final TV-stages of the Grand Slam of Darts (staged by PDC), eventually losing out to Berry van Peer.

PDC

Menzies entered the PDC 2018 Q-School after his early loss at the 2018 BDO World Darts Championship. He then qualified for the first PDC European Tour event of the year, the European Darts Open in Leverkusen and beat Mark Wilson 6-2 in the first round, before losing to the eventual champion Michael van Gerwen.

Menzies won one Challenge Tour event in 2018.

He won two challenge tour titles in 2019 after again failing to secure a tour card at Q-School.

WDF

Menzies qualified for the 2022 WDF World Darts Championship by winning the 2021 Welsh Open. He was the number 14 seed in the World Championship. He reached the semi final by beating Ian Jones, Wayne Warren and James Hurrell but he lost 4–5 to Thibault Tricole.