Shane Lowry and Kiradech Aphibarnrat shared a one-shot lead but defending champion Thorbjørn Olesen was making a charge through the field early on the final day of the Turkish Airlines Open.
Lightning around Regnum Carya Golf & Spa Resort had caused a 40-minute delay at the sixth Rolex Series event of the season as the Irishman and the Thai entered with a two -shot advantage.
The duo played their first three holes in level par to stay at 14 under but Olesen picked up three birdies in his first four to sit just a shot off the lead.
Major champions Padraig Harrington and Justin Rose, and Belgian Nicolas Colsaerts were then at 12 under.
Olesen set the course record here last season with a 62 and with a rain softened course, there was a chance that score could be in play again on Sunday.
It was the Dane himself who got off to the fastest start of the leading contenders, birdieing the first and then holing a 12-footer on the second to quickly get to 12 under.
Harrington also birdied the first to get within one of the lead and when Rose holed a 15-footer down the hill on the par three second, he too was at 13 under.
Colsaerts had started the day with a birdie on the first but he sent his tee-shot on the second a long way left to drop a shot.
Harrington also missed the green by a long way on the second and gave back the birdie from the first while Aphibarnrat did well to get up and down for par after leaving his tee-shot short.
Rose missed the green on the third and three-putted from the fringe for a bogey but Olesen was moving in the other direction and he holed a 15-foot putt on the fourth to sit just one shot off the lead.
English pair Eddie Pepperell and Lee Westwood were at 11 under alongside South African Dylan Frittelli.
