A spot in the next round is at stake on Friday, when Madison Keys goes up against Sara Bejlek in the Cincinnati quarterfinal. Madison Keys is 7-3 across recent matches. Sara Bejlek has won 3 in a row and 7 of the last 10 overall.
Keys's 65.5% behind the first serve (against 57.7% for Bejlek) means break chances should be scarce in one direction. A tiebreak or two would surprise nobody, with Keys fractionally more likely to land the big points.