Illya Marchenko defeated Denis Istomin 7-6 6-3 in the Mons CH round of 32 on hard. The result followed the form book — Illya Marchenko came in defending the title. Illya Marchenko extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-10-25 | St. Petersburg | R32 | carpet | Illya Marchenko | 6-2 2-2 RET |
| 2010-10-18 | Moscow | R32 | hard | Denis Istomin | 6-7(4) 6-2 6-2 |
| 2010-06-13 | Eastbourne | QF | grass | Denis Istomin | 6-1 6-4 |
| 2009-10-19 | Moscow | R32 | hard | Illya Marchenko | 1-6 6-4 4-1 RET |
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