Head-to-Head
Overview
R. Kosaka and Liuyan An have met 1 time so far, all in 2026. R. Kosaka leads 1–0. Their first encounter was at the 2026 W15 Luan 5 (R32), won by R. Kosaka.
By surface
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R. Kosaka and Liuyan An have met 1 time so far, all in 2026. R. Kosaka leads 1–0. Their first encounter was at the 2026 W15 Luan 5 (R32), won by R. Kosaka.