Olympic tennis champion Elena Dementieva has maintained her hot streak to reach the U.S. Open semi-finals with a 6-2 6-3 win over Switzerland's Patty Schnyder.
The fifth-seeded Russian extended her winning run to 11 matches when she became the first player to reach the last four at Flushing Meadows.
Facing Schnyder for the 17th time, Dementieva wasted little time in making her intentions clear as she broke the Swiss in the third game and kept up the pace in the second to win her fifth successive match in New York in straight sets.
She will next face either second seed Jelena Jankovic or Austrian Sybille Bammer.
