Head-to-Head
Overview
Petr Bar Biryukov and K. Isomura have met 1 time so far, all in 2026. K. Isomura leads 1–0. Their first encounter was at the 2026 M15 Maanshan 7 (SF), won by K. Isomura.
By surface
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Petr Bar Biryukov and K. Isomura have met 1 time so far, all in 2026. K. Isomura leads 1–0. Their first encounter was at the 2026 M15 Maanshan 7 (SF), won by K. Isomura.