Australia’s Ajla Tomljanovic got off to a perfect start in her match against Elena Rybakina and was ahead 2-0, but after that she won just two more games to tumble out 6-4, 6-0.
Rybakina broke back in the fourth game for 2-2.
Tomljanovic was up 0-40 in the seventh game, only to see a series of winners from her opponent before an error from the Australian saw that chance slip away.
The Australian had another break opportunity in the ninth game, again she failed to convert and it was Rybakina up 5-4.
Rybakina broke in the 10th game to take the opening set after consecutive double faults gave the world no. 22 three set points.
The Kazak player raced away in the second set to claim the match in one hour and two minutes.
Both players served at 60% on first serves but Rybakina was more consistent and that helped her win the match.