Thursday's San Marino round of 16 pits Francesco Maestrelli against Juan Pablo Varillas on clay. Francesco Maestrelli is 1-9 across recent matches. Juan Pablo Varillas comes in at 6 wins from the last ten.
The serve is where this match separates: Maestrelli has been winning 72% of first-serve points to Varillas's 68.3%, and on clay that gap compounds fast. Little separates them; Maestrelli gets the nod on the finest of margins.