Your Most Reliable
Tennis Training Partner
Frustrated with $100+ per hour tennis lessons?
Hi, I'm Sophie Luo, creator of rallie
I'm a:
- UC Berkeley & UPenn-trained engineer and robotist
- Serial entrepreneur based in San Francisco
- Passionate tennis player
I've tried nearly all the tennis ball machines on the market but found none of them satisfactory, so I decided to build my own! Read more about my story here.
I aim to build the most COMPACT, DURABLE, and INTELLIGENT tennis ball machine ever.
My current design is:
- •80 MPH top speed
- •Topspin, backspin, volley, and even sidespin
- •Internal oscillation
- •30% smaller and 30% lighter than current models
- •Lots of AI functions to make your training really personalized (and interactive :D)
Join me in shaping the future of tennis training!!
🎾
Help shape the future of tennis training! Take survey and win $100.