Head-to-Head
Overview
Colin Sinclair and J. Yamasaki have met 1 time so far, all in 2026. J. Yamasaki leads 1–0. Their first encounter was at the 2026 M15 Tokyo (R32), won by J. Yamasaki.
By surface
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Colin Sinclair and J. Yamasaki have met 1 time so far, all in 2026. J. Yamasaki leads 1–0. Their first encounter was at the 2026 M15 Tokyo (R32), won by J. Yamasaki.