WILLIAMSBURG, 18 May 2015 (AFP) - Lee stumbled with a bogey at the 16th, but parred the final two holes of the fourth round to claim her first USLPGA Tour title with a 16-under-par 269.
"I was a little bit nervous, but I'm glad I could get the win," said Lee.
There was a weather delay that lasted two hours, four minutes on Sunday, which forced the final round to stretch into Monday
Ryu So-Yeon birdied three in a row when play resumed Monday morning to close with a four-under 67. She finished in solo second place at 13-under.
Alison Lee made bogey on 18 for a two-under 69 and a third-place finish.
Third-round leader Perrine Delacour, of France, managed an even-par 71 and grabbed fourth at 11-under 273.
Delacour, who had never led after any round on the LPGA Tour, was seeking to join Patricia Meunier Lebouc, Anne Marie Palli and Catherine Lacoste as the only French winners on the LPGA Tour.
Suzann Pettersen (68), Paula Creamer (70) and Kim Hyo-Joo (68) shared fifth place at 10-under.