Head to head
0
Hard
1
1
Grass
0
Igor Sijsling's wins on the left · Denis Istomin's on the right · bar lengths share one scale
All meetings (2)
| 2013 | Queen's Club | Grass | R32 | Igor Sijsling | 7-6(4) 6-1 |
| 2013 | Australian Open | Hard | R128 | Denis Istomin | 4-6 6-3 6-4 6-2 |
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.