Head-to-Head
Overview
Stian Klaassen and William Zhang have met 1 time so far, all in 2026. Stian Klaassen leads 1–0. Their first encounter was at the 2026 M15 Rancho Santa Fe, CA, won by Stian Klaassen.
By surface
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Stian Klaassen and William Zhang have met 1 time so far, all in 2026. Stian Klaassen leads 1–0. Their first encounter was at the 2026 M15 Rancho Santa Fe, CA, won by Stian Klaassen.