The five-year-old only returned to full training earlier this month but having looked well when winning a trial in Seoul last week, Dolkong was able to travel to Busan to take his chance in the race that's often referred to as the "Summer Grand Prix"
And take his chance he did, as Dolkong, sent off as second-favourite, produced a final furlong burst to deny YTN Cup winner Moonhak Chief another big race win.
Pre-race favourite was Cheongdam Dokki, so disappointing in the YTN last month, blew his chances at the start, stumbling and almost falling as he exited the gate – he would recover but was never a factor.
It was left to World Day to set the early pace and the four-year-old led the field into the home straight.
Once World Day was headed by stablemate New Legend, with Moonhak Chief in close attendance before Dolkong showed the acceleration that saw him win the Listed Curlin Handicap at Meydan and passed them all to win with just under a length in hand.
It was Dolkong's first start for trainer Bae Dae-Sun and he was partnered for the first time by Johan Victoire, the French jockey scoring his biggest success in Korean racing to date.
Next assignment for Dolkong is expected to be the International G3 Korea Cup at Seoul on Sunday September 8.