John Isner defeated Pierre Hugues Herbert 6-1 6-3 4-6 6-3 in the US Open round of 128 on hard. The result followed the form book — John Isner came in leading the head-to-head 3–0, defending last year's round of 32. John Isner extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-08-06 | Canada Masters | R32 | hard | John Isner | 7-6(3) 6-2 |
| 2018-05-28 | Roland Garros | R32 | clay | John Isner | 7-6(1) 6-4 7-6(4) |
| 2014-05-26 | Roland Garros | R128 | clay | John Isner | 7-6(5) 7-6(4) 7-5 |
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