MASON, Ohio — Ashleigh Barty’s chance to move back to No. 1 was only one victory away. But at the end of an up-and-down week, she did not have another one left in her.

Barty lost to Svetlana Kuznetsova, 6-2, 6-4, in the semifinals of the Western & Southern Open on Saturday, adding to the tournament’s week of upsets and injuries. The women’s bracket has a lot questions with the United States Open in New York just around the corner.

No. 1 isn’t one of them.

Barty’s seven-week run atop the field ended when Naomi Osaka edged ahead of her in the latest rankings. A victory Saturday would have moved Barty back ahead for the U.S. Open. Instead, she dropped the opening set for the third straight match, and this time, there was no digging out.

“A week that we battled through,” Barty said. “I think at times I played some good stuff. At times, I played some pretty awful stuff.”