Denis Istomin defeated Mischa Zverev 6-4 7-6 in the St. Petersburg qualifying round of 16 on hard. The upset overturned the form book — Mischa Zverev came in leading the head-to-head 2–0. Denis Istomin claimed a first win over Mischa Zverev in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-26 | US Open | Q1 | hard | Mischa Zverev | 7-6 7-6 |
| 2019-08-19 | US Open | Q128 | hard | Mischa Zverev | 7-6(4) 7-6(8) |
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
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About