Sandro Kopp defeated Tanguy Genier 6-2 6-7 6-3 in the M25 Klosters semi-final on clay. The result followed the form book — Sandro Kopp came in leading the head-to-head 1–0. Sandro Kopp extended the head-to-head to 2–0.
Kopp S. came through in three sets, with three breaks of serve.
Break of serve
Clay: Kopp S. leads 1–0 · Hard: Kopp S. leads 1–0
Sandro Kopp beat Tanguy Genier 2-6 7-6 3-6. Umpiry, "Tanguy Genier vs Sandro Kopp — M25 Klosters Semi-final", https://umpiry.com/match/2026-06-20/genier-vs-kopp-m25-klosters-sf?utm_source=cite (as of 20 June 2026).