He won the prestigious Isle of Man Senior TT, North West 200 and also enjoyed success at Endurance racing.

[4] He won the 2007 Albacete 6-Hour Endurance race on a Kawasaki, teamed with Julian Mazuecos and Gwen Giabbani.

He was voted Best Newcomer at the 2007 Isle of Man TT on Yamahas, having been mentored by former racer Mick Grant.

He won the Supersport TT race after on-the-road winner Bruce Anstey's bike was excluded.

[9] Plater spent 2009 with the HM Plant Honda team in Supersport, winning the title ahead of Australian Billy McConnell at the final round.