Head-to-Head
Overview
Chan-Yeong Oh and R. Cogan have met 1 time so far, all in 2026. Chan-Yeong Oh leads 1–0. Their first encounter was at the 2026 M25 Yinchuan (R32), won by Chan-Yeong Oh.
By surface
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Chan-Yeong Oh and R. Cogan have met 1 time so far, all in 2026. Chan-Yeong Oh leads 1–0. Their first encounter was at the 2026 M25 Yinchuan (R32), won by Chan-Yeong Oh.