Wilson Tennis Ball Championshiop Extra Duty - 4Ball

Wilson Tennis Ball US Open Extra Duty 4Ball has been the trusted choice at the US Open for over 40 years, delivering unmatched consistency and performance. Crafted with premium woven felt, it provides superior bounce and durability, making it ideal for hard and abrasive courts. Available in Extra Duty, Regular Duty, and High Altitude variations, it ensures optimal performance on your preferred playing surface.

• Trusted at the US Open for over 40 years
• Premium woven felt for superior bounce and durability
• Extra Duty design ideal for hard and abrasive courts
• Available in Extra Duty, Regular Duty, and High Altitude variations
• Ensures consistent performance across all playing conditions

What court surface are these balls best for?

These are Extra Duty balls - the thicker woven felt is specifically designed to handle hard-court surfaces (acrylic, concrete and asphalt), where abrasive courts quickly wear down Regular Duty felt. Use them on hard courts for best value.

Are these pressurised or pressureless?

These are pressurised balls with a lively, crisp feel - the tour standard for match play. Once the can is opened, pressurised balls stay at peak bounce for 1-3 hours of match play. After that they're still fine for practice but will feel softer. Don't leave opened cans sitting around for weeks - the internal pressure escapes through the felt.

Are these balls approved for tournament play?

For sanctioned tournament play, look for ITF approval or Tennis Australia approval on the can. Most premium balls from Wilson, Dunlop, Babolat and Head are ITF approved - if you're unsure, contact us via chat and we'll confirm for this specific model.

How many balls are in this pack?

This pack contains 4 balls. Good value for regular practice, matches and club stock.