[2] Polworth made his senior debut for Inverness Caledonian Thistle in the Scottish Premier League on 11 May 2011, becoming the club's youngest ever player, at the age of 16 years, 211 days.
[4] On 17 April 2019, Polworth signed a pre-contract agreement with Motherwell, his first club after being at Inverness since the age of 8.
[5] After rejecting a new contract in January 2021 and falling out with manager Graham Alexander, Polworth was made to train with the youth team.
[9][10] On 28 February 2022, Polworth joined Scottish Championship side Dunfermline Athletic on loan for the remainder of the 2021–22 season.
This biographical article related to association football in Scotland, about a midfielder born in the 1990s, is a stub.