John Isner defeated Ryan Sweeting 6-3 6-4 in the Delray Beach 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 32. John Isner extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-04-09 | Houston | QF | clay | John Isner | 7-6(1) 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 27). ATP, WTA & Challenger.