The 17-year-old 21st Asian Junior Championships All-Events gold medallist, started off brilliantly with a spare in her opening frame followed by four strikes-in-a-row to open up a huge gap against challenger, Oh Hyun Ji of Korea in the title match.
The Korean just could not repeat the form she displayed in the earlier matches. Despite missing a single-pin spare in the ninth frame, Ramita struck out to win comfortably, 224-193 to become the youngest-ever Thai to win the Women's Open crown. She also earned a big pay-check of 130,000 Thai baht.
Oh, who settled for second and pocketed 65,000 Thai baht, had eliminated strong opponents, second-seed Shayna Ng and third-seed Jazreel Tan of Singapore, 245-233-223 to face the Thai. Oh, who was seeded fifth, also defeated another Singaporean, Colleen Pee and Natasha Roslan of Malaysia, 237-210-180 in the first stepladder match.
Ng, who won the women's title in 2018, finished third to take home 32,000 Thai baht leaving Tan, Pee and Natasha settling for fourth, fifth and sixth positions respectively.