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The Power and Technique Behind Jannik Sinner's Unbeatable Serve

Jannik Sinner secured six titles in 2026, including a successful title defense at Wimbledon, where he defeated Alexander Zverev in the final. During that championship match, Sinner saved his only break point and relied on precise placement over raw speed, as Zverev's aces averaged 133mph while Sinner's were slower.

Nick Kyrgios praised the Italian's pinpoint accuracy.

His service improvement was driven by coach Simone Vagnozzi, who replaced Riccardo Piatti four years ago. Vagnozzi transitioned Sinner from a platform stance to a pinpoint stance and adjusted the toss to be more aggressive.

After a 2025 US Open final loss to Carlos Alcaraz, Sinner further refined his rhythm and motion, implementing changes just before a tournament in Beijing. These adjustments helped Sinner increase his ace rate from 8.9% in 2025 to 16.4% in 2026.

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