Swiatek has now won 35 straight games.
She thus equaled Venus Williams' 2000s record in the number of straight victories.
However, up to Martina Navratilova's 74 straight victories from 1984, there is a difference.
The victory was her second in the Grand Slam context.
The first also came in the French Open, two years ago.
She now has six straight titles on the WTA Tour.