Head-to-Head
Overview
Castelnuovo/ Hsu and Montsi/ van Schalkwyk have met 2 times so far, all in 2026. Montsi/ van Schalkwyk leads 2–0. On hard, Montsi/ van Schalkwyk leads 2–0. Their first encounter was at the 2026 Centurion (South Africa) (R16), won by Montsi/ van Schalkwyk. Most recently they met at the 2026 Centurion 2 (South Africa) (R16), with Montsi/ van Schalkwyk winning. Montsi/ van Schalkwyk has won the last 2 meetings.
By surface
- hard0 – 2