Corina Morariu defeated Anna Kournikova 6-2 6-1 in the Sydney round of 16 on hard. The upset overturned the form book — Anna Kournikova came in leading the head-to-head 1–0, defending last year's semi-final. Corina Morariu claimed a first win over Anna Kournikova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-01-19 | Australian Open | R64 | hard | Anna Kournikova | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.