Hi Margaret, the difference is extra duty is a much thicker felt and is designed for hardcourt play. Regular duty can also be played on Hardcourts but is versatile enough to be played on clay courts. Extra duty will last a tad longer than the regular balls will on a hardcourt.
Beside above, what does extra duty mean on a tennis ball?
Extra Duty
That means that the felt on these balls are less likely to fluff up as they are played. While Extra Duty balls tend to be more durable, they don’t play as fast as Regular Duty balls. You can quickly identify our Extra Duty balls by their black Wilson logos.
One may also ask, can I use regular duty tennis balls on hard court?
These balls are also suitable for use on indoor courts, and although regular duty balls can be used on outdoor hard courts, they will not be as durable as extra duty balls. Regular duty balls are also pressurized and will lose their bounce over time.
Are extra duty tennis balls worth it?
If you play on a hard court surface, you need Extra Duty tennis balls. Due to the unforgiving nature of those courts you need a ball that will wear down less quickly. Extra duty balls have a thicker felt, that is woven not as tightly around the ball’s core. This means the felt will perform better, for longer.
Why are tennis balls kept in the fridge?
Throughout history, fridges have been deployed at the side of courts to maintain the consistency of bounce in every ball while they’re waiting to be used. The 53,000 balls used at the tournament will be kept at 20 degrees until it’s their time to shine.