Dede Suhendar Dinata defeated Tasuku Iwami 6-3 6-3 in the Indonesia F4 round of 32 on hard. The upset overturned the form book — Tasuku Iwami came in leading the head-to-head 1–0, but Dede Suhendar Dinata had been the form player, winning 2 of their last 4 on hard. Dede Suhendar Dinata claimed a first win over Tasuku Iwami in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-04-21 | Indonesia F1 | R16 | hard | Tasuku Iwami | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.