Tuesday's Guadalajara round of 16 pits Diane Parry against Peyton Stearns on hard. Diane Parry has won 8 of the last 10. Peyton Stearns comes in at 5 wins from the last ten.

The serve is where this match separates: Parry has been winning 66.1% of first-serve points to Stearns's 60.7%, and on hard that gap compounds fast. Expect resistance, but the match-level math tilts clearly toward Parry.