
In Tokyo, 2014 champion Luksika Kumkhum lost the quarter-final match to top seed and world No 24 Zhang Shuai of China 6-7 (3-7) 1-6.
In the doubles semi-finals, rain interruption stopped the momentum of Varatchaya Wongteanchai and Jessica Moore of Australia who were leading Jamie Loeb of the US and An Sophie Mestach of Belgium at 4-2.
When play resumed two hours later, the American-Belgian pair took charge and went on to win the match 7-6 (7-4) 6-4 in one hour and 35 minutes.
In Kobe, Japan, Sonchat Ratiwatana and Yi Chu-Huan of Taiwan went down to Ante Pavic of Croatia and Daniel Masur of Germany 6-3 5-7 8-10 in the US$50,000 Hyogo Noha Challenger.