Pask started his career with his local club West Ham United, joining them at the age of eight.[4] He progressed through the academy and went on to sign a two-year scholarship in the summer of 2014, after turning down an approach from Arsenal.[4] In November 2014, despite still being a first year scholar he signed his first professional contract on his seventeenth birthday, agreeing a three-year deal.[5]
In October 2015 he signed on a months's loan for Dagenham & Redbridge, a loan which was extended in November for a further month.[6]
On 8 August 2016, Pask signed for League One club Gillingham on a season-long loan deal.[7] He made his Gillingham debut the following day in a 3–1 League Cup victory at Southend United.[8]
His contract with West Ham finished at the end of the 2018–19 season.[9]
Coventry City
Having been released, Pask signed a three-year contract with Coventry City.[3][10] He did not make his debut for Coventry until 14 January 2020, in a third round FA Cup game. Pask scored on his debut as Coventry won 3–0 against Bristol Rovers.[11]
On 11 January 2022, Pask joined EFL League Two side Newport County on loan for the remainder of the 2021–22 season.[12] He made his debut for Newport on 15 January 2022 in the starting line-up for the 4-0 League Two win against Harrogate Town.[13]