Sybille Bammer defeated Maria Julieta Lillo 6-3 6-1 in the Tucuman 25K round of 32 on clay. The upset overturned the form book — Maria Julieta Lillo came in leading the head-to-head 1–0. Sybille Bammer claimed a first win over Maria Julieta Lillo in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1996-08-12 | Guayaquil 10K | R32 | clay | Maria Julieta Lillo | 7-6 5-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.