Head-to-Head
Overview
Madison Sieg 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 (R32), won by R. Brantmeier.
By surface
- hard0 – 1
Madison Sieg 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 (R32), won by R. Brantmeier.