German tennis star Alexander Zverev secured the world No. 1 ranking on October 29, 2026, after defeating Tallon Griekspoor of the Netherlands in the round of 16 at the Erste Bank Open in Vienna. The victory makes Zverev the 30th player to hold the top spot in ATP history.
Zverev celebrated the achievement at Wiener Stadthalle, stating he had experienced "the best season" of his career. The 29-year-old's rise to No. 1 follows a consistent campaign across the 2026 season.
