Mardy Fish defeated Juan Martin del Potro 6-3 6-4 in the San Jose quarter-final on hard. The result followed the form book — Mardy Fish came in defending last year's quarter-final. Mardy Fish extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-03-23 | Miami Masters | R16 | hard | Mardy Fish | 7-5 7-6(5) |
| 2011-02-21 | Delray Beach | SF | hard | Juan Martin del Potro | 6-1 7-5 |
| 2008-08-04 | Los Angeles | SF | hard | Juan Martin del Potro | 6-2 6-1 |
| 2007-02-19 | Memphis | R16 | hard | Mardy Fish | 6-1 7-6(9) |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About