Thorman scored the fastest hat-trick of tries scored from the start of a match in 6 min 54 sec while playing for Huddersfield Giants against Doncaster Dragons in the semi-final of the Buddies National League Cup at Doncaster, South Yorkshire, on 19 May 2002.

Thorman struggled with form and only made 11 appearances for the club before leaving Australia and signing with The Huddersfield Giants.

[2] Thorman captained Huddersfield in the 2006 Challenge Cup Final at stand-off half back against St. Helens but the Giants lost 12–42.

[8][9] In June 2012, Thorman announced to be joining Super League's Huddersfield Giants as an assistant coach at the end of the season.

On 3 May 2019, Thorman was appointed head coach at Workington Town, following the departure of former boss Leon Pryce.