# William Kelly

> William Kelly is a Tennis coach in Arlington, Massachusetts.

Source: https://sites.coach/william-kelly. Every page on this site has a Markdown version at its URL plus `/index.md`, or send `Accept: text/markdown`.

## About

- Teaches: Kids, Teenagers, Adults, Seniors
- Levels: beginner, intermediate, expert
- Years of experience: 45
- Lessons taught: 42+
- Rating: 5.0 out of 5 from 14 ratings

With 45 years devoted to tennis, I blend college coaching experience with personalized instruction. My passion is fostering skill development, sportsmanship, and a lifelong love for the game.

## Packages and prices

- **Welcome to TennisWorld!**: 3 prepaid 60-minute lessons for $324.00 ($54.00 per lesson, per player, for 2 players). Choose 1 to 20 lessons.

## Where lessons happen

- Menotomy Rocks Park, Arlington, Massachusetts
- Spy Pond Field, Arlington, Massachusetts
- Greene-Rose Heritage Park, Cambridge, Massachusetts
- Moxley Park Tennis Facility, Watertown, Massachusetts

## Weekly hours

- Monday, Tuesday, Saturday, Sunday: 10:00 AM to 12:00 PM

## Cancellation policy

- Cancel or reschedule at least 24 hours before a lesson.

## Reviews

> I have been a student of coach William going on four years. He basically built my tennis game from the ground up. His lessons are very challenging, but also fun. I am now a high school sophomore and play on my high school tennis team. I plan to continue learning from coach William.
> From Feliks, 5 out of 5

> My lessons with William were instructive and lots of fun. I enjoyed every minute and my tennis improved greatly over the course of my lessons. I highly recommend him to anyone looking for an extremely knowledgeable, articulate and congenial tennis coach.
> From Rosanne, 5 out of 5

> Bill is responsive to my texts to schedule the appointment. He knows what my kids need to do. His drills are effective and fun. He is also kind to parents as well. Overall, he made a positive impact on my kids' tennis journey. Highly recommended.
> From Kostas, 5 out of 5

> William is an excellent coach! He gave me clear instructions and corrected my mistakes very positively. As a result, I made significant improvements under his guidance!
> From Seong, 5 out of 5

> Bill is a very nice person and tennis coach. I have really improved my strokes with the advice he has given me. Highly recommend!
> From Ye, 5 out of 5

## Pages on this site

- [Home](https://sites.coach/william-kelly/index.md)
- [All services](https://sites.coach/william-kelly/services/index.md)
- [Tennis Lessons](https://sites.coach/william-kelly/lessons)
- [Group Lessons](https://sites.coach/william-kelly/group-lessons/index.md)
- [Kids Lessons](https://sites.coach/william-kelly/kids-lessons/index.md)
- [Lessons in Arlington](https://sites.coach/william-kelly/areas/arlington)
- [Menotomy Rocks Park, Arlington](https://sites.coach/william-kelly/locations/menotomy-rocks-park-arlington)
- [Agent instructions](https://sites.coach/william-kelly/llms.txt)

## Book through the API

William Kelly sells private lessons on this site. It is one coach on TeachMe.To, listing id `5a7f6e9f-551e-4f58-8515-26004621ba9f`. 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/5a7f6e9f-551e-4f58-8515-26004621ba9f): 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/5a7f6e9f-551e-4f58-8515-26004621ba9f/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/william-kelly/llms.txt).