John Isner defeated Tennys Sandgren 7-6 6-7 6-3 in the Auckland round of 16 on hard. The result followed the form book — John Isner came in leading the head-to-head 1–0, defending last year's round of 16. John Isner extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-10-15 | Stockholm | QF | hard | John Isner | 7-6(8) 6-7(5) 7-6(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 (118 vs 176). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About