Kiradech Aphibarnrat has moved to the top of the leaderboard at the Shenzhen International after hitting nine birdies during his third round.
The world number 116 has moved two shots clear of Peter Uihlein, but it could have been better for the 25-year-old, who dropped three shots in his closing two holes.
A 65 from Spain's Pablo Larrazabal has moved him into third position, three shots adrift of Aphibarnrat, while a group of four players, including Tommy Fleetwood, are in a tie for fourth place.
World number four Bubba Watson remains off the pace after a second successive 74 left him in 58th spot.
