Luis Horna defeated Miguel Tobon 6-2 4-6 7-6 in the Cuba Mexico Masters 4 round of 16 on clay. The upset overturned the form book — Miguel Tobon came in leading the head-to-head 2–0. Luis Horna claimed a first win over Miguel Tobon in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-17 | Ecuador F3 | R32 | clay | Miguel Tobon | 6-4 3-6 6-3 |
| 1998-08-10 | Ecuador F2 | QF | clay | Miguel Tobon | 7-6 3-6 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.