Suwandi Suwandi defeated Yong Il Yoon 6-3 7-6 in the Malaysia 1 Masters 1 qualifying round on hard. The upset overturned the form book — Yong Il Yoon came in leading the head-to-head 2–0, but Suwandi Suwandi had been the form player, winning 4 of their last 4 on hard. Suwandi Suwandi claimed a first win over Yong Il Yoon in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-04-06 | Davis Cup G1 PO: KOR vs INA | RR | hard | Yong Il Yoon | 6-3 7-6 6-2 |
| 1996-06-10 | Chinese Taipei Masters 4 | QF | hard | Yong Il Yoon | 6-2 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.