Head to head
1
Hard
0
2
Clay
0
1
Grass
0
Denis Istomin's wins on the left · Florian Mayer's on the right · bar lengths share one scale
All meetings (4)
| 2018 | Stuttgart | Grass | R16 | Denis Istomin | 6-3 6-4 |
| 2016 | Geneva | Clay | R32 | Denis Istomin | 6-2 6-3 |
| 2013 | Roland Garros | Clay | R128 | Denis Istomin | 4-6 6-3 7-5 RET |
| 2012 | Brisbane | Hard | R32 | Denis Istomin | 7-6(5) 2-3 RET |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.