Simona Halep won her first Wimbledon title and crushed Serena Williams' latest bid for a record-equalling 24th Grand Slam success with a devastating 56-minute display of athleticism.
The Romanian won 6-2 6-2 in front of an incredulous Centre Court, running after everything the American threw at her.
"It was my best match," the 27-year-old said after her second Grand Slam title following her 2018 French Open success.
For 37-year-old Williams, it was a third major final defeat in 12 months.
"She played out of her mind, it was a little bit deer in the headlights for me," she said.
- I played the match of my life - Halep
- Someone told me not to look at records - Williams
- How Halep stunned Williams - clips, quotes & text
- Watch Serena Williams' on-court interview
Halep shows no nerves as expectation weighs on Williams
Williams, like in last year's final defeat by Angelique Kerber, seemed weighed down by public and personal expectations as she quickly fell 4-0 behind in the opening set.
Halep had said beforehand that she had no pressure on her and that is exactly how she played.
From the outset she looked relaxed and confident, attacking the Williams serve and keeping the rallies long and deep to force the American into errors.
While Williams closed her eyes at changeovers to try to regroup, Halep kept her eyes on the prize and kept her cool to take the victory on her second match point, when the American sent a forehand into the net.
Halep's level never dropped in an almost perfect display in which she made just three unforced errors to Williams' 26.
"I knew that I have to be aggressive, be 100% for every ball, and that I don't have to let her come back into the match because she's so powerful and so strong," Halep said. "She knows how to manage every moment. So I knew that I have to stay there, which I did pretty well today."
Defeat means Williams' wait for a first Grand Slam title since becoming a mum continues, as does her pursuit of an eighth Wimbledon singles title.
"I definitely knew that she was just playing her heart out," the American said. "I felt like, OK, what do I need to do to get to that level?
"When someone plays lights out, there's really not much you can do. You just have to understand that that was their day today."
Halep sticks to the perfect gameplan
Seventh seed Halep, in her first major final since winning the French Open last year and having lost her world number one ranking, flew under the radar at these championships while much of the focus was on Williams and her record chase.
But she executed the perfect gameplan - stifling Williams' biggest weapon in her serve - and it was credit to her returning ability that Halep restricted the American to just two aces when she had fired 45 during her other matches.
Halep's movement around the court contrasted with a sluggish Williams - who at one point was urged to "wake up" by one shout from the crowd - and her tenacity in the rallies forced the American to overcook her shots through what felt like desperation at times.
A break in the first game set the tone, with Williams firing wide before a Halep hold to love underlined her determination to win. The net helped Halep in the next game, with her shot scraping over but Williams' return bouncing back at the American.
With just 11 minutes on the clock Halep had won the first four games and she barely slowed, facing just one break point - which she saved.
Williams started to get herself a bit more into the match early in the second set but when she came to the net for a volley with the whole court at her disposal and only managed to find the net, giving Halep the break, she must have known it was not going to be her day.
Halep won the next three games in a row, falling to her knees with her arms raised to the sky in celebration as Centre Court rose to its feet in appreciation of one of the greatest Wimbledon final performances.
The stats around Halep's brilliant victory
- Halep won 83% of her first-serve points, compared to 59% for Williams
- Williams made 26 unforced errors, while Halep made just three
- Williams had more winners - 17 - than Halep (13), but Halep won 45% of receiving points compared to 26% for Williams
- Halep had lost nine of her previous 10 meetings with Williams
- Halep has now won the past two Grand Slam finals she has appeared in, having been defeated in the three before that. Williams has lost her past three
- Although 56 minutes is a quick victory, it is some way off the fastest Grand Slam final win - Steffi Graf's 34-minute French Open win of 1988
- Halep, who began the championships as world number seven, will rise to number four when the next rankings are published on Monday
BBC tennis correspondent Russell Fuller: "At the start of the second set you could see that Simona Halep was still that bit better, actually a lot better. I don't think anyone is going to feel short-changed by the 56 minutes of tennis that they have seen today because they have seen one of the all time great Wimbledon final performances."
Two-time Grand Slam champion Tracy Austin on BBC TV: "Unbelievable tennis from Simona Halep. She put herself in such a bubble mentally and she didn't let herself begin to think about the end of the match. She said this was a chill year. She really took the pressure off herself."
Three-time Wimbledon singles champion John McEnroe: "I'm shocked. She obviously is a tremendous and, at this stage in her career, superior athlete. But I didn't think it would intimidate Serena Williams as much as it did today. Halep completely and thoroughly outplayed her. It wasn't even a match. There's only a handful of times in your life when you feel as though you're in the zone like that and that was one of them."
Nine-time Wimbledon singles champion Martina Navratilova: "I think it's essential for Serena Williams to play more matches. You can't fake it. You need those matches. History can get in the way, and it can get difficult to get rid of those nerves."