Antal Van Der Duim defeated Jonathan Chu 7-6 6-4 in the China F4 round of 32 on hard. The upset overturned the form book — Jonathan Chu came in leading the head-to-head 1–0. Antal Van Der Duim claimed a first win over Jonathan Chu in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-03-13 | China F5 | F | hard | Jonathan Chu | 7-6(4) 6-7(0) 4-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.