John Isner defeated Janko Tipsarevic 7-5 7-6 in the London Olympics round of 16 on grass. The upset overturned the form book — Janko Tipsarevic came in leading the head-to-head 1–0. John Isner claimed a first win over Janko Tipsarevic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-10-26 | Vienna | R32 | hard | Janko Tipsarevic | 7-6(4) 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.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About