Joan Jimenez Guerra defeated Daniel Melo 3-6 6-4 6-2 in the Chile 1 Masters 3 semi-final on clay. The upset overturned the form book — Daniel Melo came in leading the head-to-head 2–0, but Joan Jimenez Guerra had been the form player, winning 1 of their last 4 on clay. Joan Jimenez Guerra claimed a first win over Daniel Melo in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-05 | Spain 6 Masters 3 | QF | clay | Daniel Melo | 6-2 6-0 |
| 1998-04-04 | Chile 1 Masters 2 | R32 | clay | Daniel Melo | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.