In one hour and 21 minutes, the Romanian Halep worked hard to beat the Iberian by taking advantage of 79% of her first serve against 49% of her rival.
“It was not easy. Always the first round is difficult when you change surfaces. I had a good run at Wimbledon. I am very happy,” she maintained.
The 30-year-old two-time Grand Slam champion won her 23rd WTA title in Melbourne last January.
Halep now waits in the round of 16 for the winner of the match between the American Madison Brengle and the Russian Anna Kalinskaya.
For his part, Murray, 35, a three-time Grand Slam winner and Olympic champion in London-2012 and Rio-2016, was swept out of the tournament by Ymer (ranking 115) in sets of 7-6 (8). , 4-6 and 6-1.
Murray, No. 50 in the world, was looking to improve his ranking in the hope of becoming top seed at the US Open (Grand Slam), which he won a decade ago.
The Swede will now go to the next round against the Russian Aslan Karatsev, fifteenth seed who was released in this first round of the event, in the ATP 500 category in the men’s draw.
The entrance Halep debuts with victory in Washington, Murray says goodbye was first published in diary TODAY.