John Isner defeated Richard Gasquet 2-6 7-6 6-3 in the Belgrade quarter-final on hard. The upset overturned the form book — Richard Gasquet came in leading the head-to-head 3–1. John Isner narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-26 | Eastbourne | QF | grass | Richard Gasquet | 6-3 6-2 |
| 2013-08-11 | Cincinnati Masters | R32 | hard | John Isner | 7-6(6) 6-2 |
| 2012-08-06 | Canada Masters | SF | hard | Richard Gasquet | 7-6(3) 6-3 |
| 2009-11-02 | Basel | R16 | hard | Richard Gasquet | 4-6 7-6(9) 6-2 |
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 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About