Janko Tipsarevic defeated Denis Istomin 6-2 5-7 6-1 6-4 in the Davis Cup WG PO: SRB vs UZB round robin on hard. The upset overturned the form book — Denis Istomin came in leading the head-to-head 2–1, but Janko Tipsarevic had been the form player, winning 2 of their last 5 on hard. Janko Tipsarevic narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-17 | Geneva | R32 | clay | Denis Istomin | 6-0 6-2 |
| 2013-08-05 | Canada Masters | R64 | hard | Denis Istomin | 6-4 6-3 |
| 2010-11-01 | Basel | R32 | hard | Janko Tipsarevic | 6-2 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