John Isner defeated Sam Querrey 7-6 6-3 6-4 in the Roland Garros round of 128 on clay. The upset overturned the form book — Sam Querrey came in leading the head-to-head 5–4, defending last year's round of 128, but John Isner had arrived on a 3-match winning run. John Isner narrowed the head-to-head to 5–5.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2022-03-07 | Indian Wells Masters | R64 | hard | John Isner | 7-6(6) 7-6(2) |
| 2019-02-25 | Acapulco | R16 | hard | John Isner | 6-4 6-4 |
| 2018-08-13 | Cincinnati Masters | R64 | hard | Sam Querrey | 6-4 6-7(5) 7-6(5) |
| 2016-01-11 | Auckland | R16 | hard | John Isner | 7-6(8) 6-7(4) 6-4 |
| 2015-08-16 | Cincinnati Masters | R64 | hard | Sam Querrey | 6-3 7-6(3) |
| 2015-02-09 | Memphis | QF | hard | Sam Querrey | 7-6(3) 7-6(2) |
| 2010-05-03 | Belgrade | F | hard | Sam Querrey | 3-6 7-6(4) 6-4 |
| 2010-03-11 | Indian Wells Masters | R32 | hard | John Isner | 7-6(3) 6-4 |
| 2010-02-15 | Memphis | F | hard | Sam Querrey | 6-7(3) 7-6(5) 6-3 |
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 (98 vs 46). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.