Monday's US Open first round pits Karolina Muchova against Sinja Kraus on hard. Karolina Muchova comes in at 9 wins from the last ten. Sinja Kraus is searching for form, having lost 2 in a row (4 of the last 10).

Muchova's 64.8% behind the first serve (against 59.2% for Kraus) means break chances should be scarce in one direction. Kraus needs several things to break right at once; the percentages say they usually don't.