A final-round 73, one-over-par, saw Marsh (Huddersfield Golf Club) complete the tournament seven under, the same score as Irishman Brendan McCarroll (Narin & Portnoo Golf Club), who had birdied the last two to record a final-round 70.
The duo headed to the 17th tee where McCarroll made a good up and down after narrowly avoiding the rough from the tee and then a greenside bunker with his second shot, while Marsh missed a 15 foot putt for birdie.
The 18th was the second play-off hole and Marsh will feel lucky to have escaped with par. He was in the rough off the tee and then watch McCarroll miss an eight-foot birdie putt for what would have been the win.
The pair then returned to 17 where both again made par, before Marsh sunk his birdie putt from just inside 15 feet for the victory.
Marsh wins £10,000 and also takes home a brand new Motocaddy S3 PRO electric trolley with lithium battery, Bushnell Pro X2 Range Finder and Bolle sunglasses.He climbs to second on the tour’s Race To Amendoeira money list, from which the top five at the end of the season graduate to the Challenge Tour.
Mike Bedford (Bramhall Park Golf Club), Liam Murray (GNK Golf & The LM Club) and Nick Watson (Stoke Rochford Golf Club), shared third on six under with Joe Brooks (Hanbury Manor Golf Club) and Michael Stewart (Troon Welbeck Golf Club) both finishing five under.
Highlights of the Dawson & Sanderson Classic will air on Sky Sports on Tuesday, July 18.
The HotelPlanner.com PGA EuroPro Tour continues with the COBRA PUMA GOLF Championship at Machynys Peninsula, July 19-21.
Motocaddy has been selected as the ‘Official Electric Trolley’ of the PGA EuroPro Tour for the twelfth consecutive year. The PGA EuroPro Tour is the leading developmental tour in Europe with the top five players from the Order of Merit receiving exemptions onto the 2018 European Challenge Tour.