Muchová, Nosková and Lehečka advance to US Open third round

Wimbledon finalist Karolína Muchová has cruised past Britain's Katie Boulter 6-1, 6-0 at the US Open to reach the third round in New York for the fourth consecutive year.

Wimbledon champion Linda Nosková and Jiří Lehečka have also advanced to the third round.

Sixth-seeded Nosková defeated Thailand's Lanlana Tararudee 6-4, 6-2 on the New York hard courts. Lehečka, seeded 12 places lower, beat Britain's Toby Samuel 6-4, 6-2, 6-4.

Karolína Plíšková was knocked out by 15th seed Diana Shnaider of Russia, losing 1-6, 6-7.