Seventh seed Mirra Andreeva outclassed American Hailey Baptiste 6-1 6-3 under the Court One roof to equal her best Wimbledon run by reaching the last 16 on Saturday.
In a first week littered with fallen seeds, 18-year-old Andreeva has made reaching the business end of the tournament look like a breeze and is yet to drop a set.
She has reached the third round of the doubles too with partner Diana Shnaider, also without losing a set.
The Russian's clean hitting proved too much for 55th-ranked Baptiste who has enjoyed an impressive Wimbledon main draw debut, having reached the fourth round at Roland Garros.
"Honestly, today I was so focused today," Andreeva, who is coached by former champion Conchita Martinez, said.
"I watched her first round and I knew it would be tough because she creates a lot of different stuff on the court and has a rocket of a forehand.
"With every match I play I feel my level is rising."
Three service breaks delivered a one-sided first set in 31 minutes but Baptiste loosened up in the second and produced eye-catching tennis of her own, especially off the forehand which often had Andreeva at full stretch.
Had she taken any of the five break points she had when trailing 4-2 things could have got interesting but Andreeva held on, letting out a yell that echoed around the arena.
Andreeva, the highest seed left in the bottom half of the draw, wrapped up victory two games later and will next meet either defending champion Barbora Krejcikova or American 10th seed Emma Navarro.

FIFA to increase financial distribution to all 48 World Cup teams by 15%
Sabalenka stunned by Baptiste in Madrid Open quarter-finals
Palestinian football body appeals to sports court over FIFA Israel ruling
Holders PSG edge Bayern 5-4 in record-breaking semi-final first leg
Sinner sweeps past Norrie in to reach Madrid quarter-finals
