Friday's Cincinnati first round pits Karolina Pliskova against Sara Bejlek on hard. Karolina Pliskova comes in at 6 wins from the last ten. Sara Bejlek has won 4 of the last 10.
Pliskova's 68.5% behind the first serve (against 57.5% for Bejlek) means break chances should be scarce in one direction. A tiebreak or two would surprise nobody, with Pliskova fractionally more likely to land the big points.