Ernests Gulbis of Latvia has become the first male qualifier in six years to make the fourth round at Wimbledon after coming from a set down to beat fourth-seeded Alexander Zverev of Germany 7-6 (2), 4-6, 7-5, 6-3, 6-0.
"It's my first win against No.1".
"It's awesome. I was 2-5 down in the final set but the crowd pushed me to fight".
Entering Saturday, eight of the top 10 seeds in women's singles had been eliminated. I was fighting until the end for every ball.
"I drove the girls insane before because when I practised, in two shots I did a drop shot", 48th-ranked Hsieh, who will face Slovakia's Dominika Cibulkova for a place in her first Grand Slam quarter-final, told reporters.
Hsieh will meet either Dominika Cibulkova or Elise Mertens in the fourth round.
Hsieh refused to be beaten at the All England Club on Saturday after emerging a 3-6, 6-4, 7-5 victor, despite dropping serve seven times and saving a match point.
"This year I have tried to enjoy more, not just tennis but life, food, strawberries and cream, lobster. I just want to feel free and enjoy the match", she added, about how she prepared herself for the tie.
And in her third round match against World No 1 Simona Halep at Wimbledon - a tournament that values tradition more than anything else - she was willing to break that service rhythm rule too, at match point no less.
Bencic, now at 56 in the world, next faces two-time Grand Slam champion Angelique Kerber who swept past Naomi Osaka of Japan. Hsieh saved the match point with a backhand victor before holding for 5-5 and broke Halep in the next game. But I am too exhausted, I was too exhausted, I have pain everywhere.
Karolina Pliskova as the highest remaining seed in the first week of the tournament. I think because I was exhausted, because I'm exhausted, I couldn't stay focused on every ball.
"Yes, this is the biggest win of my career and the first over a world No. 1", Hsieh told the BBC.
The Serb will next face Russian Karen Khachanov for the first time for a place in the quarter-finals.
Otherwise, Rafael Nadal, Novak Djokovic and Juan Martin del Potro all won on a day the English spectators were preoccupied with two things: soccer and the sun. "She deserved to win". Halep is a defensive counter-puncher first and foremost, using her excellent agility and court coverage to stay in points for far longer than virtually any other player on Tour would be able to.
Later, when asked what she thought of the crowd's reaction to her request before her final serve, she said simply, "It helped a lot".
In the women's draw, Belgium's Alison van Uytvanck, who dismissed last year's champion Garbine Muguruza in the previous round, continued her progress in a confident 6-2, 6-3 triumph over Estonian Anett Kontaveit.
Hsieh's 3-6, 6-4, 7-5 win sent French Open champion Halep crashing out in the third round on Saturday.