Stefanie Haidner defeated Nathalie Vierin 3-6 7-6 7-5 in the Lecce 10K round of 16 on clay. The upset overturned the form book — Nathalie Vierin came in leading the head-to-head 1–0, but Stefanie Haidner had been the form player, winning 3 of their last 9 on clay. Stefanie Haidner claimed a first win over Nathalie Vierin in two meetings, levelling the head-to-head at 1–1.
Haidner S. came through in three sets.
Stefanie Haidner beat Nathalie Vierin 3-6 7-6 7-5. Umpiry, "Stefanie Haidner vs Nathalie Vierin — Lecce 10K Round of 16", https://umpiry.com/match/1999-09-20/haidner-vs-vierin-lecce-10k-r16?utm_source=cite (as of 20 September 1999).