Denis Istomin defeated Thomaz Bellucci 7-6 7-6 in the Bucharest round of 32 on clay. The upset overturned the form book — Thomaz Bellucci came in leading the head-to-head 2–0, but Denis Istomin had been the form player, winning 3 of their last 4 on clay. Denis Istomin claimed a first win over Thomaz Bellucci in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-17 | Geneva | R16 | clay | Thomaz Bellucci | 6-4 6-4 |
| 2015-04-27 | Istanbul | R16 | clay | Thomaz Bellucci | 7-6(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