American women are 10 for 10 so far at the French Open, giving the country its most representatives in the Grand Slam tournament's second round since 11 made it in 2003.
And there are two more U.S. women still waiting to play first-round matches Tuesday, including 13-time major champion Serena Williams.
Among the U.S. victories Monday: Bethanie Mattek-Sands of Phoenix eliminated 12th-seeded Sabine Lisicki of Germany 6-4, 6-3, and Lauren Davis, an 18-year-old qualifier from Boca Raton, Fla., surprised 30th-seeded Mona Barthel of Germany 6-1, 6-1.
It's quite a change from recent times. In five of the previous seven years, only four American women managed to make it out of the first round on Roland Garros' slow, red clay.