British number one Katie Boulter reached her fourth WTA Tour quarter-final of the season by sweeping aside Japan's Kyoka Okamura in Tokyo.
The 28-year-old won 6-1 6-2 against 271st-ranked Okamura, who lost in qualifying but was placed in the main draw as a lucky loser.
Boulter is ranked 33rd in the world after the most successful season of her career and the gap between the pair showed.
Possessing more power from the back of the court, and showing glimpses of craft, Boulter's greater consistency was too much for Okamura to handle.
"I feel like I'm playing some good tennis and trying to get through these matches," Boulter said.