Maria Sanchez Lorenzo defeated Sandra Cacic 6-3 6-3 in the Key Biscayne round of 128 on hard. The result followed the form book — Maria Sanchez Lorenzo came in leading the head-to-head 1–0, defending last year's round of 128. Maria Sanchez Lorenzo extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-01-18 | Australian Open | R128 | hard | Maria Sanchez Lorenzo | 6-2 3-3 RET |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.