John Isner defeated Tobias Kamke 6-1 6-3 in the Washington round of 32 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 |
|---|---|---|---|---|---|
| 2011-07-04 | Newport | SF | grass | John Isner | 7-5 7-6(4) |
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.