Yong Il Yoon defeated Bjorn Jacob 4-6 6-2 6-4 in the Indonesia F2 qualifying round on hard. The result followed the form book — Yong Il Yoon came in leading the head-to-head 1–0. Yong Il Yoon extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-02-15 | Philippines Masters 2 | R32 | hard | Yong Il Yoon | 6-3 5-7 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.