Head-to-Head
Overview
K. Collins and R. Brantmeier have met 1 time so far, all in 2026. R. Brantmeier leads 1–0. Their first encounter was at the 2026 W100 Sumter (QF), won by R. Brantmeier.
By surface
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K. Collins and R. Brantmeier have met 1 time so far, all in 2026. R. Brantmeier leads 1–0. Their first encounter was at the 2026 W100 Sumter (QF), won by R. Brantmeier.