Standard Tennis Ball

A standard tennis ball is designed according to regulations set by the International Tennis Federation (ITF) and follows these key specifications:

• Diameter: Between 2.57 - 2.70 inches (6.54 - 6.86 cm)
• Weight: Between 1.98 - 2.10 ounces (56.0 - 59.4 grams)

• Made with a rubber core and covered in felt, which helps with aerodynamics and grip.
• The felt covering is usually a mix of wool and nylon, designed to provide control and durability.

1. Regular Duty: Best for indoor and clay courts, with softer felt that doesn't pick up as much clay.
2. Extra Duty: Designed for hard courts, with thicker, more durable felt for longer play.
3. High Altitude: Used at altitudes above 4,000 feet, where air pressure affects ball movement.
4. Pressureless Balls: Used for practice and training, as they don't lose bounce over time.

• A standard tennis ball must bounce between 53-58 inches (135-147 cm) when dropped from 100 inches (254 cm) onto a solid surface.
• Balls are pressurized (12-14 psi) inside the can to maintain bounce and performance.

A standard tennis ball is designed for optimal bounce, control, and durability, making it a crucial part of the game across different playing surfaces.