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Be A Game Changer With Equipment From OnCourt OffCourt.
Your premier source for Tennis and Pickleball court equipment, training gear, video trainings, accessories and more!
PTR Master Professional and OnCourt OffCourt Founder - Joe Dinoffer
Joe Dinoffer has had an extensive "world class" career in the tennis industry, and has conducted clinics and exhibitions in over 50 countries, personally logging over 30,000 hours of instruction. He is a Master Professional in both the PTR and USPTA, a distinction awarded to only a select few in the tennis industry.
Joe is the author and editor of 7 books and 22 DVDs. As a member of the Head/Penn Advisory Staff and National Speakers Bureau, Joe has been a frequent speaker at national and international tennis conferences, having conducted over 250 workshops since 1995.
With all of this experience, Joe founded OnCourt OffCourt, Ltd., in order to share his expertise with players around the world.
Tennis
Pickleball
Fitness
At Home
OnCourt OffCourt Training Aids
Training Aids
Take your game to a whole new level with OnCourt OffCourt’s innovative and effective assortment of kinesthetic training tools.
No matter what the level of your game is right now, you can improve efficiently and intelligently with the best-designed gear in the game. Improve your accuracy, your power, your knowledge, your speed, and your love for the game right here at OnCourt OffCourt.
At Home Practice for Tennis and Pickleball
OnCourt OffCourt is your hub for pickleball and tennis practice at home! Now is the time to get some amazing exercise and hone those skills that you crave…all without leaving the house! It doesn’t matter if your goal is to be a world-class player, keep up with your hobby, or find a brand new game to try; you’ve found the right place!
Free Training Videos
Check out our top resources for top of the line FREE training for tennis and pickleball! Head over to OnCourtOffCourt.com for tons of free video trainings that help you unlock your potential and take your game to the next level!
john borrelli
Reviewed in the United States on March 3, 2025
Not the one pictured! Bar code placed on instructions such that one CANNOT remove it without destroying instructions. Classic junk with deceptive advertising
Huy Pham
Reviewed in the United States on May 15, 2023
This whistle dampener does exactly what it’s supposed to— whistle. However, it is extremely stiff so I don’t advise putting this on racquets with a high string tension.
piotr czerepaniak
Reviewed in the United States on June 11, 2022
Very unfair to show on a photo two dampeners but in fact it’s only one .Totally not worth it .
ronald
Reviewed in the United States on February 25, 2022
I think the idea is great, but the execution is horrible as it does not work at all.
Jorge Carabaguiaz
Reviewed in the United States on November 26, 2019
This is my third whistler vibrator dampener is it almos never sound
Bo Knows
Reviewed in the United States on January 14, 2019
Feedback, if you are a audible person this works and you can use it while you are practicing.
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