Guiomar Maristany Zuleta De Reales defeated Mayar Sherif 6-4 6-3 in the Australian Open qualifying round 1 on hard. The upset overturned the form book — Mayar Sherif came in ranked #49. Guiomar Maristany Zuleta De Reales extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-01-12 | Australian Open | Q128 | hard | Guiomar Maristany Zuleta De Reales | 6-4 6-3 |
| 2021-06-29 | W60 Montpellier | R32 | clay | Mayar Sherif | 7-6(10) 6-4 |
| 2019-09-25 | W60+H Valencia | R32 | clay | Guiomar Maristany Zuleta De Reales | 7-6(5) 6-4 |
| 2019-06-21 | W25 Madrid | QF | hard | Mayar Sherif | 6-3 6-3 |
Averages over each player's completed matches in the selected window (39 vs 46). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About