L. Fernandez and Z. Sonmez are level 1-1 in their head-to-head since 2018 over 2 matches.
| Surface | L. Fernandez | Z. Sonmez |
|---|---|---|
| Grass | 0 | 1 |
| Clay | 1 | 0 |
| Date | Winner | Score | Event |
|---|---|---|---|
| June 16, 2026 | Z. Sonmez | 2 - 0 | Nottingham · 1/16-finals · grass |
| April 16, 2026 | L. Fernandez | 2 - 1 | Stuttgart · 1/8-finals · clay |