The 18-year-old Haet who came from the qualifying round just like Nudnida proved more solid from the baseline battle which she won in just 68 minutes.
Haet and Muramatsu will play for the first ITF singles title of their career. The lefthanded Japanese won the marathon battle with Dart which consumed up to hour and 5 minutes.
The 18-year-old Japanese will go to the final with a 2-0 head-to-head record over the Australian whom she beat twice in their junior events two years ago.