Mariana Diaz Oliva defeated Nicole Pratt 6-2 6-1 in the Prague round of 16 on clay. The upset overturned the form book — Nicole Pratt came in leading the head-to-head 1–0. Mariana Diaz Oliva claimed a first win over Nicole Pratt in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-07-25 | Fed Cup WG2 PO: AUS vs ARG | RR | carpet | Nicole Pratt | 6-3 3-6 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (19 vs 38). ATP, WTA & Challenger.