# Justin Sim > Justin Sim is a Tennis coach in San Francisco, California. Source: https://sites.coach/justin-sim. Every page on this site has a Markdown version at its URL plus `/index.md`, or send `Accept: text/markdown`. ## About - Headline: Tennis Lessons with Justin Sim - Teaches: Kids, Teenagers, Adults, Seniors - Levels: beginner, intermediate, expert - Years of experience: 14 - Lessons taught: 85+ - Rating: 5.0 out of 5 from 64 ratings I am a college student who plays tennis for my college team. With 14 years of playing experience and extensive coaching background, I am dedicated to helping others improve their tennis skills. My passion for the game drives me to provide effective and insightful coaching to players of all levels. ## Packages and prices - **Lesson Package**: 4 prepaid 60-minute lessons for $360.00 ($90.00 per lesson). Sold as 1 to 20 lessons. ## Where lessons happen - Grove Park, Berkeley, California - Alice Marble Tennis Courts, San Francisco, California - Parkside Square Tennis Courts, San Francisco, California - San Pablo Park Tennis Courts, Berkeley, California - Fulton Playground, San Francisco, California - Potrero Hill Recreation Center, San Francisco, California - Joe DiMaggio Tennis Courts, San Francisco, California - Mountain Lake Park, San Francisco, California - Parkside Square, San Francisco, California - Willard Park Tennis Courts, Berkeley, California - Crocker Amazon Playground, San Francisco, California - Hamilton Recreation Center Tennis Court, San Francisco, California ## Weekly hours - Monday, Tuesday, Wednesday, Thursday: 7:00 AM to 11:00 PM - Friday, Saturday, Sunday: 7:00 AM to 10:00 PM ## Cancellation policy - Cancel or reschedule at least 24 hours before a lesson. The coach charges no fee for a late cancellation or a no-show. ## Reviews > Justin is the best coach I’ve ever been with. He has been working with me since last fall. I had zero experience and expectations with tennis. Justin has helped me with my form and technique and also has implemented many drills and cardio training programs in our lesson. > From Jimmy, 5 out of 5 > Justin's lesson provided really great tips and feedback, which I appreciated quite a bit. Guidance was quite helpful and well-structured overall. If you’re interested in good, practical advice, give Justin a try. > From Tylor, 5 out of 5 > First lesson with Justin is very productive and fun. We were able to focus on practicing and correcting form, and i love that the lessons can be tailored to my level and needs. > From Lou, 5 out of 5 > Talented tennis player and coach. Share knowledge of the sport with students and has helpful observations on techniques and form. > From Andrew, 5 out of 5 > Justin is the best tennis coach I have ever taken lessons from! > From Diana, 5 out of 5 > Justin was very nice and patient. He made our lesson very fun > From Daniel, 5 out of 5 > Very friendly, professional and attentive coach. Thank you! > From Ioanna, 5 out of 5 ## Pages on this site - [Home](https://sites.coach/justin-sim/index.md) - [All services](https://sites.coach/justin-sim/services/index.md) - [Tennis Lessons](https://sites.coach/justin-sim/lessons) - [Private Lessons](https://sites.coach/justin-sim/private-lessons/index.md) - [Lessons in Berkeley](https://sites.coach/justin-sim/areas/berkeley) - [Berkeley Rose Garden Park, Berkeley](https://sites.coach/justin-sim/locations/berkeley-rose-garden-park-berkeley) - [Grove Park, Berkeley](https://sites.coach/justin-sim/locations/grove-park-berkeley) - [James Kenney Park, Berkeley](https://sites.coach/justin-sim/locations/james-kenney-park-berkeley) - [King School Park, Berkeley](https://sites.coach/justin-sim/locations/king-school-park-berkeley) - [Live Oak Park, Berkeley](https://sites.coach/justin-sim/locations/live-oak-park-berkeley) - [San Pablo Park Tennis Courts, Berkeley](https://sites.coach/justin-sim/locations/san-pablo-park-tennis-courts-berkeley) - [Strawberry Creek Park, Berkeley](https://sites.coach/justin-sim/locations/strawberry-creek-park-berkeley) - [Willard Park Tennis Courts, Berkeley](https://sites.coach/justin-sim/locations/willard-park-tennis-courts-berkeley) - [Agent instructions](https://sites.coach/justin-sim/llms.txt) ## Book through the API Justin Sim sells Tennis lessons on this site. It is one coach on TeachMe.To, listing id `760b2e2a-6e64-460e-9e7a-421914cb175c`. An agent reads this coach, quotes what this site sells, and books it through the TeachMe.To agent API. - [Agent instructions, generated from the live API](https://api.teachme.to/agent/v1/llms.txt): Read this before calling anything. Sessions need no registration. - [This coach](https://api.teachme.to/agent/v1/coaches/760b2e2a-6e64-460e-9e7a-421914cb175c): The coach read. `site.packages` are the packages sold here, priced as this site prices them, and `site.cancellationPolicy` is this site's policy. - [Open times](https://api.teachme.to/agent/v1/coaches/760b2e2a-6e64-460e-9e7a-421914cb175c/slots): Pass `sitePackageId` and `locationId` with `from` and `to`. - Quotes and bookings: pass `sitePackageId` and `lessons` to `POST /quotes`, then `POST /bookings` with the quote. The booking returns `paymentUrl`; the student pays there, and the booking is readable while they do. Send `policyAccepted: true` after showing the student the policy when `site.cancellationPolicy.agreementRequired` is true. - [OpenAPI 3.1](https://api.teachme.to/agent/v1/openapi.json): The machine contract. The `sitePackageId` and `locationId` values for this site are in [llms.txt](https://sites.coach/justin-sim/llms.txt).