Yong Il Yoon defeated Andrian Raturandang 6-4 4-6 6-2 in the Chinese Taipei Masters 4 round of 32 on hard. The result followed the form book — Yong Il Yoon came in leading the head-to-head 4–0. Yong Il Yoon extended the head-to-head to 5–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-06-07 | Japan 1 Masters 4 | R16 | hard | Yong Il Yoon | 6-0 6-3 |
| 1998-05-11 | China F2 | QF | hard | Yong Il Yoon | 6-3 6-2 |
| 1998-03-02 | Philippines F1 | R32 | hard | Yong Il Yoon | 6-1 6-3 |
| 1997-04-07 | Malaysia 1 Masters 3 | R16 | hard | Yong Il Yoon | 7-5 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.