
Hyeon Chung defeated Marin Cilic 6-4 3-6 6-1 in the Tokyo round of 16 on hard. The upset overturned the form book — Marin Cilic came in ranked #46, leading the head-to-head 3–0, defending last year's round of 32. Hyeon Chung claimed a first win over Marin Cilic in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-01-04 | Brisbane | R16 | hard | Marin Cilic | 7-5 7-6(3) |
| 2015-09-28 | Shenzhen | QF | hard | Marin Cilic | 7-6(6) 6-4 |
| 2015-08-03 | Washington | R32 | hard | Marin Cilic | 7-6(2) 6-3 |
Averages from each player's recent completed matches (19 vs 19). ATP, WTA & Challenger.