England's Simon Dyson and Dane Søren Kjeldsen were tied for the lead after six holes of the Reale Seguros Open de España final round in Seville.
Dyson was ahead by only one after a closing double bogey in his third round and made a flying start, sinking an 18 foot putt on the first and then chipping in a bunker shot for another birdie at the next.
But he was twice in deep rough at the long fifth and ran up a bogey six to fall back alongside Kjeldsen, who had birdied the first and fifth at the scene of his 2009 Open de Andalucía win and where he holds the course record with 62.
They were two in front of Italian Francesco Molinari and Spaniards Pablo Larrazábal and Jorge Campillo.
Dyson and Kjeldsen both three-putted the short seventh and with Dyson then having his third bogey in four holes on the next, missing the green and failing to hole from eight feet, it was all change at the top.
Molinari was the one to take advantage. He two-putted the long ninth to complete a superb front nine 32 and by holing a ten footer at the tenth for his fifth birdie he led Kjeldsen by one and Dyson by two.
