The perfect learning tool for tennis players

Gain confidence in your tennis game by knowing the rules. Don’t lose another point

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User Testimonials

Leanne Luehrmann


Now that I've brushed up on some things, I may not let opponents get away with as much anymore! Great idea and format, so thank you, I'm going to tell everyone I know about it!  

Michael Parretta, NTRP Rating 4.0

Pacific Lutheran University Tennis Team (2008-2012), University Place WA


Every USTA captain needs this app. This is awesome. It's packed with all the rules and so much fun to use.  

Kim Selzman, NTRP Rating 3.5

Author, Tennis Fixation


I have been working my way through iKnowTennis! app and really enjoy it - I'm kind of a nerd about rules so I think it's a lot of fun.  

Steve Varon, NTRP 3.5

Hellam Varon CPAs, Bellevue WA


iKnowTennis! is a must have app for all tennis players. A great resource for all tennis rules and regulations. The quiz section is a great way to test your knowledge [and pass time waiting for your doubles partner to show up]!
About iKnowTennis!

I discovered tennis about seven years ago and love the sport. Love the exercise, intensity of the game, social aspects, and new friendships. Like most sports and hobbies, I needed to learn the rules and courtesies of the game. As I improved my skills, experienced tennis players taught me the rules of tennis and winced when I naively broke a game courtesy.

When a ball hits a line and is 99% out, it is 100% good. Both a rule and a courtesy. A courtesy because if you’re not sure if the opponent's ball hit in or out, it is in. You give the benefit of the doubt to your opponent. I was taught this by my experienced tennis friends. Remember I was brand new to the sport.

After some matches, I discovered that my naivety on rules cost me points. Plus I wanted to understand those what-ifs....."what if the ball hits a tree limb?" or "what if someone talks just as I'm about to hit the ball."

I recognized this can easily learned with an app.

With a copy of the rule book in my hand, I conducted hundreds of interviews of players, tennis professionals, coaches, USTA officials, and tennis fans to create the raw material for a mobile app. I organized the material into a fun and quick way for you to learn the sport's rules.

I hope you enjoy the app. Please share it with your teammates and even your opponents!

See you on the courts,

Barbara Wyatt, App Developer and Tennis Player




Links & Resources

Frequently Asked Questions

1How accurate is the iKnowTennis! App?
We conducted hundreds of interviews of players, tennis professionals, coaches, USTA officials, and tennis fans to develop I Know Tennis! app. The majority of the questions come from tennis players asking “what do I do when…” The answers are written by officials and players with years of experience.
2What happens when the rules are updated?
We update iKnowTennis! with new questions, clarification on rules, and even brand new rules.
3Where do I get support?
Submit a request using the contact form at the bottom of this page.
4Can I submit a question?
Yes! We add questions frequently. Click on “connect” on the lower right hand corner of the app and send those on-court questions to us!

Contact Us!


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