John Isner defeated Jan Lennard Struff 6-4 6-7 6-3 in the Paris Masters round of 16 on hard. The result followed the form book — John Isner came in leading the head-to-head 3–1, defending last year's quarter-final. John Isner extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2022-01-03 | Atp Cup | RR | hard | Jan Lennard Struff | 7-6(7) 4-6 7-5 |
| 2019-08-26 | US Open | R64 | hard | John Isner | 6-3 7-6(4) 7-6(5) |
| 2016-10-24 | Vienna | R32 | hard | John Isner | 6-7(1) 6-3 6-4 |
| 2014-08-25 | US Open | R64 | hard | John Isner | 7-6(5) 6-4 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.