[5] Carmont made his professional rugby league début for the Newcastle Knights, against the Melbourne Storm on 11 March 2004.

[8] Carmont played for the Wigan Warriors in the 2011 World Club Challenge against 2010 NRL premiers, the St. George Illawarra Dragons, and scored two tries, but it was not enough to gain his side the victory.

2011's Super League XVI for Wigan Warriors started with a Magic Weekend match against St Helens, in which Carmont scored one try.

[16] Carmont was selected for the Exiles squad for the Rugby League International Origin Match against England at Headingley on 10 June 2011.

[17] On 3 November 2011 The annual RLIF Awards dinner was held at the Tower of London, and Carmont was named Samoa player of the year.