Colorado Rapids and St. Louis City are set to renew rivalries in the USA. Cup. Semi-finals on Thursday, September 17, 2026 at 03:30. The stage is set at Home Arena, nestled in the heart of Germany. Sascha Stegemann officates. Forecast: Sunny, 22°C. Injury concerns hang over both camps — Meier for the hosts and Schwarz for the visitors. Their competitive history is packed with drama: Colorado Rapids 1 - 2 St. Louis City (2022). Colorado Rapids 1 - 1 St. Louis City (2025). Colorado Rapids 1 - 3 St. Louis City (2025). Colorado Rapids 2 - 2 St. Louis City (2023). Colorado Rapids 0 - 4 St. Louis City (2022). Today's prediction: 3:0.