Head to head
2
Hard
1
0
Clay
1
Denis Istomin's wins on the left · Lleyton Hewitt's on the right · bar lengths share one scale
All meetings (4)
| 2013 | Memphis | Hard | R16 | Denis Istomin | 6-1 6-2 |
| 2012 | Brisbane | Hard | R16 | Denis Istomin | 7-5 7-5 |
| 2010 | Roland Garros | Clay | R64 | Lleyton Hewitt | 1-6 6-3 6-4 2-6 6-2 |
| 2008 | Australian Open | Hard | R64 | Lleyton Hewitt | 7-6(5) 6-3 5-7 6-1 |
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.