Katie Boulter wins Japan Open first-round match after rain delay

• Katie Boulter, ranked 58th in the women's rankings, won against Himeno Sakatsume.
• The match was halted due to bad weather in Osaka on Monday and resumed on Tuesday.
• Boulter completed the win with a 6-3, 6-1 score.
• The British player was leading 6-3, 3-1 when the match was suspended.
• Boulter's victory was achieved at the WTA Osaka event.