Pro Penn Marathon is the official ball of PTR because of its guaranteed longevity, durability and visibility. Penn's longest lasting tennis ball, the Pro Penn Marathon is the #1 choice among USPTA Teaching Professionals. These feature Penn's Encore technology for a 22% longer lasting core and high tenacity and LongPlay felt for better durability. Optik felt keeps visibility at a maximum. The Extra Duty felt is for hard courts and is a High Altitude ball for use over 3500 ft. The ball, along with the racket, is arguably the most important piece of tennis equipment. The tennis ball must lie within the specifications laid down in the Rules of Tennis while providing consistent playing properties and being sufficiently durable to withstand repeated high-speed impacts with the racket and surface.
Pro Penn Marathon is the official ball of PTR because of its guaranteed longevity, durability and visibility. Penn's longest lasting tennis ball, the Pro Penn Marathon is the #1 choice among USPTA Teaching Professionals. These feature Penn's Encore technology for a 22% longer lasting core and high tenacity and LongPlay felt for better durability. Optik felt keeps visibility at a maximum. The Extra Duty felt is for hard courts and is a High Altitude ball for use over 3500 ft. The ball, along with the racket, is arguably the most important piece of tennis equipment. The tennis ball must lie within the specifications laid down in the Rules of Tennis while providing consistent playing properties and being sufficiently durable to withstand repeated high-speed impacts with the racket and surface.
in 6 offers
The lowest price for Penn Pro Marathon Extra Duty High Altitude Tennis Balls right now is $12.10 at desertcart.com.au, compared across 5 retailers.
The all-time low was $12.10 on 29 Oct 2026. That's the lowest price we've ever tracked — a great time to buy.
Penn Pro Marathon Extra Duty High Altitude Tennis Balls
Pro Penn Marathon is the official ball of PTR because of its guaranteed longevity, durability and visibility. Penn's longest lasting tennis ball, the Pro Penn Marathon is the #1 choice among USPTA Teaching Professionals. These feature Penn's Encore technology for a 22% longer lasting core and high tenacity and LongPlay felt for better durability. Optik felt keeps visibility at a maximum. The Extra Duty felt is for hard courts and is a High Altitude ball for use over 3500 ft. The ball, along with the racket, is arguably the most important piece of tennis equipment. The tennis ball must lie within the specifications laid down in the Rules of Tennis while providing consistent playing properties and being sufficiently durable to withstand repeated high-speed impacts with the racket and surface.
Pro Penn Marathon is the official ball of PTR because of its guaranteed longevity, durability and visibility. Penn's longest lasting tennis ball, the Pro Penn Marathon is the #1 choice among USPTA Teaching Professionals. These feature Penn's Encore technology for a 22% longer lasting core and high tenacity and LongPlay felt for better durability. Optik felt keeps visibility at a maximum. The Extra Duty felt is for hard courts and is a High Altitude ball for use over 3500 ft. The ball, along with the racket, is arguably the most important piece of tennis equipment. The tennis ball must lie within the specifications laid down in the Rules of Tennis while providing consistent playing properties and being sufficiently durable to withstand repeated high-speed impacts with the racket and surface.
Prices last updated 1 Nov 2026.
Last updated at 01/11/2026 22:52:29
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Delivery between 8–11 Nov $29
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Delivery $28.46
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Free delivery between 11–13 Nov
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Delivery between 6–10 Nov $41
| Brand | Penn |
| Type | Practice |
| Felt Type | Extra Duty |
| High-altitude | Yes |
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Delivery between 8–11 Nov $29
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Delivery $28.46
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Free delivery between 11–13 Nov
Pro Penn Marathon XD High Altitude Tennis Balls - Extra Duty Felt Pressurized Tennis Balls - 1 Can, 3 Balls
Delivery between 6–10 Nov $41
| Brand | Penn |
| Type | Practice |
| Felt Type | Extra Duty |
| High-altitude | Yes |
