Head to head
Rivalry summary
Denis Istomin and Hyeon Chung met 3 times on the ATP tour between 2015 and 2017. Hyeon Chung leads the head-to-head 2–1 against Denis Istomin. By surface, Chung leads 2–1 on clay.
1
Clay
2
Denis Istomin's wins on the left · Hyeon Chung's on the right · bar lengths share one scale
All meetings (3)
| 2017 | Roland Garros | Clay | R64 | Hyeon Chung | 6-1 7-5 6-1 |
| 2017 | Barcelona | Clay | R64 | Hyeon Chung | 6-4 6-4 |
| 2015 | Davis Cup G1 R2: UZB vs KOR | Clay | RR | Denis Istomin | 6-1 1-0 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.