14th October 2013: Frustrating end to British GT season for Duncan
12th August 2013: Brands Hatch podium for Duncan and Von Ryan Racing
18th June 2013: Hard work pays off with Snetterton podium for Duncan
27th May 2013: Loose wheel derails Duncan’s Silverstone glory bid
13th May 2013: Top-10 debut for Duncan at challenging Rockingham
3rd May 2013: Duncan joins Von Ryan Racing for British GT campaign
