Head-to-Head
Overview
Mario Mansilla Diez and Stefan Kozlov have met 1 time so far, all in 2026. Stefan Kozlov leads 1–0. Their first encounter was at the 2026 Valencia (SF), won by Stefan Kozlov.
By surface
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Mario Mansilla Diez and Stefan Kozlov have met 1 time so far, all in 2026. Stefan Kozlov leads 1–0. Their first encounter was at the 2026 Valencia (SF), won by Stefan Kozlov.