Head-to-Head
Overview
S. Sierra and D. Dilek have met 1 time so far, all in 2026. D. Dilek leads 1–0. Their first encounter was at the 2026 Ankara (Turkey) - Qualification, won by D. Dilek.
By surface
- unknown0 – 1
S. Sierra and D. Dilek have met 1 time so far, all in 2026. D. Dilek leads 1–0. Their first encounter was at the 2026 Ankara (Turkey) - Qualification, won by D. Dilek.