What were the Halle tennis results?

At the 2026 Terra Wortmann Open ATP 500 event in Halle on Friday, top seed Alexander Zverev advanced to the semi-finals with a 7-6 7-6 win over qualifier Raphael Collignon, while fifth seed Taylor Fritz defeated third seed Ben Shelton 6-7 7-6 7-6 after saving a match point. Frances Tiafoe eliminated second seed Felix Auger-Aliassime 3-6 6-3 7-6 after saving five match points, and wildcard Daniel Altmaier caused an upset by beating fourth seed Daniil Medvedev 6-4 6-7 6-4.