Head-to-Head
Overview
Duncan/ Heinonen and Lock/ Zhu have met 1 time so far, all in 2026. Duncan/ Heinonen leads 1–0. Their first encounter was at the 2026 Bonn (R16), won by Duncan/ Heinonen.
By surface
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Duncan/ Heinonen and Lock/ Zhu have met 1 time so far, all in 2026. Duncan/ Heinonen leads 1–0. Their first encounter was at the 2026 Bonn (R16), won by Duncan/ Heinonen.