Denis Istomin defeated Florian Mayer 6-2 6-3 in the Geneva round of 32 on clay. The result followed the form book — Denis Istomin came in leading the head-to-head 3–0, defending last year's round of 16. Denis Istomin extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-06-11 | Stuttgart | R16 | grass | Denis Istomin | 6-3 6-4 |
| 2013-05-27 | Roland Garros | R128 | clay | Denis Istomin | 4-6 6-3 7-5 RET |
| 2012-01-01 | Brisbane | R32 | hard | Denis Istomin | 7-6(5) 2-3 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 117). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About