Sergiy Stakhovsky defeated Denis Istomin 3-6 6-3 6-4 in the New Haven final on hard. The upset overturned the form book — Denis Istomin came in leading the head-to-head 3–2, defending last year's round of 64, but Sergiy Stakhovsky had been the form player, winning 1 of their last 5 on hard. Sergiy Stakhovsky narrowed the head-to-head to 3–3.
| 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 |
| 2014-05-26 | Roland Garros | R128 | clay | Denis Istomin | 6-3 6-4 2-6 6-3 |
| 2011-04-24 | Munich | R32 | clay | Sergiy Stakhovsky | 5-1 |
| 2007-10-07 | Moscow | Q16 | hard | Denis Istomin | 7-6(2) 7-6(3) |
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