Rose Zhang produced a scintillating late rally to sweep past Madelene Sagstrom and claim her second professional title with victory at the LPGA Founders Cup in New Jersey on Sunday.

The 20-year-old from California rattled off four birdies in her final five holes to card a six-under par 66 to finish on 24-under, two shots clear of Sweden's Sagstrom.

In cool, overcast conditions at the Upper Montclair Country Club in Clifton, overnight leader Sagstrom had looked to be cruising to victory after rolling in her fifth birdie of the day on the 12th to go three shots clear.

Sagstrom retained that hefty three-shot cushion after parring the 13th along with Zhang, who gave no clue of the pyrotechnics to follow.

Zhang pulled a shot back with a birdie on the par-five 14th, and then got to within one after a superb tee-shot set up a birdie chance on the par-three 15th which she converted.

With the pressure building, Sagstrom then cracked on the 16th, under-hitting a chip onto the green which left her a long par putt that she missed to card a bogey five.

That left Zhang as co-leader and the youngster duly seized her chance.

Another dazzling tee-shot on the par-three 17th left her a three-foot putt for birdie which she rolled in to move one shot clear, and then she sealed victory on 18 with a nerveless birdie putt from 10 feet. (AFP)