Denis Istomin defeated Lukas Rosol 3-6 6-3 6-4 in the Almaty CH semi-final on clay. The upset overturned the form book — Lukas Rosol came in leading the head-to-head 3–1, but Denis Istomin had been the form player, winning 3 of their last 5 on clay. Denis Istomin narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-04-25 | Munich | R32 | clay | Lukas Rosol | 6-7(2) 6-4 7-6(2) |
| 2015-09-28 | Shenzhen | R32 | hard | Lukas Rosol | 7-6(4) 6-4 |
| 2012-10-15 | Moscow | R16 | hard | Lukas Rosol | 4-6 6-4 6-3 |
| 2010-07-19 | Hamburg | R64 | clay | Denis Istomin | 3-6 6-4 6-3 |
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