Timothy Aerts defeated Kepler Orellana 3-6 7-6 6-4 in the Turkey 3 Masters 1 qualifying round on hard. The result followed the form book — Timothy Aerts came in leading the head-to-head 3–0. Timothy Aerts extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-24 | Turkey 3 Masters 2 | SF | hard | Timothy Aerts | 6-1 6-3 |
| 1998-08-03 | Belgium F1 | R16 | clay | Timothy Aerts | 5-7 7-5 7-6 |
| 1998-06-15 | Netherlands Masters 2 | R32 | clay | Timothy Aerts | 6-0 6-3 |