Denis Istomin defeated Sergiy Stakhovsky 6-3 6-4 2-6 6-3 in the Roland Garros round of 128 on clay. The upset overturned the form book — Sergiy Stakhovsky came in leading the head-to-head 3–1, defending last year's round of 128. Denis Istomin narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-06-21 | Nottingham | R16 | grass | Denis Istomin | 7-5 6-4 |
| 2015-02-23 | Dubai | R16 | hard | Sergiy Stakhovsky | 6-4 3-6 6-4 |
| 2011-04-24 | Munich | R32 | clay | Sergiy Stakhovsky | 5-1 RET |
| 2010-08-22 | New Haven | F | hard | Sergiy Stakhovsky | 3-6 6-3 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