The number one seed stormed to a 6-0 6-2 victory on Court Suzanne-Lenglen, and will now face Danka Kovinic – the latest woman to attempt to halt the WTA Tour's winning machine.
Chasing her 30th straight win, there was an ominous start from Swiatek, who sealed the first set in just 20 minutes as Riske won just seven points.
Swiatek was ruthless as she sped through the games, winning all three break points against Riske to get halfway to victory in double quick time.
The American tried to fight back at the start of the second, but Swiatek seemed to move up a gear every time her opponent was able to win a point, breaking again in the second game.
Riske reached deuce in the next game, before finally holding serve to get herself on the board to a big cheer from the crowd.
The world number 43 showed more fight as she held serve again, but Swiatek's power and shot placement was ultimately too much as she motored to victory.
The 2020 champion has now won 39 matches this year (including Billie Jean King Cup qualifiers), three more than her tally for the entire 2021 season.
