All three Indians - Sujjan Singh (77-72), Anirban Lahiri (71-79) and Himmat Rai (77-73) - came up short in the second round as the cut came three-over 147, to make an early exit from the inaugural CJ Invitational here.
Sujjan seemed to be on his way to make the cut with three holes to go, but he bogeyed the seventh and eighth, two of his last three holes and ended at five-over.
Himmat was done in by a disappointing eight, a triple bogey on par-5 14 and he ended with a six-over total.
Lahiri had a nightmarish round with three bogeys in first four holes and then two doubles on the seventh and ninth with another bogey in between on eighth.
He was eight-over for front nine, followed by a third double bogey on 10th to go 10-over. But he eagled 12th, birdied 14th and 16th before bogeying 18th.
Meanwhile, 25-year-old Korean Lee Ki-sang used a stunning start to snatch the third round lead from American star Anthony Kim and tournament host K J Choi.
Lee birdied his opening four holes and then sank an incredible hole-in-one at the fifth and birdied the seventh for an outward 29 before settling for an eight-under-par 64 to lead by one shot from Kim.
Overnight leader Kim, a three-time winner in the United States, birdied two of his last three holes for a 68 while local hero Choi ended the day in third place, three off the pace, following a 67 in the USD 750,000 event sanctioned by the Asian Tour and Korean Golf Tour.
A 68 kept Thailand's Prom Meesawat on the fringe of contention in tied fourth position with Korea's David Oh.
Lee, who has one domestic victory, got out of the blocks in sensational style, holing birdie putts from 12, nine, 45 and nine feet before sinking a seven iron for his ace at the par three 186-yard fifth hole.
After turning in seven under, the unheralded leader couldn't buy a putt until the 17th hole which was still good enough to give him a slender lead.