Marion Viertler defeated Ana Lantigua De La Nuez 6-3 6-3 in the W15 Cairo 8 round of 16 on clay. The upset overturned the form book — Ana Lantigua De La Nuez came in leading the head-to-head 1–0, but Marion Viertler had been the form player, winning 6 of their last 8 on clay. Marion Viertler claimed a first win over Ana Lantigua De La Nuez in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-12-13 | W15 Cairo 9 | QF | clay | Ana Lantigua De La Nuez | 6-3 6-3 |