With a hope to give something special for his mom on Mother's Day, the 20-year-old is determined to clear his last hurdle Kwon Oh-hee of South Korea, who stands in his way in the final.
After crashing out of the first round last week, Weerapat wanted to make amends to make his mother proud this week.
"I thought to myself that I wanted to give her a present by playing well this week. But when I saw the draw, I was a bit upset as I had to play the second seed in the first round,'' said Weerapat, the conqueror of tournament's No 2 Tetsuya Chaen of Japan.
" I'm happy to win that match and now I'm in the final. I don't know how to express this feeling,'' said Weerapat who effortlessly picked off Taiwanese qualifier
Chang Huai-en 6-3 6-1 in the semi-final on Saturday.
He now stands a shot at becoming the Thai man behind Paradorn Srichaphan and Danai Udomchoke to hold an ITF trophy.
"Frankly speaking, I'm thinking of the title now. But the Korean guy plays smart and has tricky shots. I have to be patient and make him run,'' said Weerapat who said the whole Indonesian crowd was behind him.