Choi bounced back brilliantly with a scintilating 266 in the fourth game to regain the lead pushing Hsu into second. Despite only knocking down 184 in her next game, Choi, the 18-year-old from Daejeon strolled home with 245, 201 and 203 to win the title with 1698.
Min and another Korean, Lee Hyeon Gyung traded second spot before Min sealed it with a big game of 257 with 1665. Lee settled for third spot with 1638. Ex-international, Chien Hsiu Lan of Chinese Taipei making a comeback finished fourth with 1589.
Vietnam's Ha Dieu Huong completed the top five with 1579. Choi earned 45,000 Thai baht as champion with Min picking up 23,000 baht and Lee 12,000 baht as first and second runners-up. The Men's Grade A and Senior Masters finals will be held later this evening.
The Men's and Ladies' Open Masters qualifying rounds will commence April 11 for the next three days over three blocks of five games each. The bowlers will be divided ionto four squads. Their Round 2 and ROund 3 finals will be held on April 14.