An important update regarding COVID19:

Gymnasium/ Sports Leagues

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The Walnut Gymnasium offers residents a variety of athletic activities. The Gym boasts two full sized basketball courts and a multipurpose room for classes. The Gymnasium has seasonal sports leagues, as well as open gym times and scheduled fitness and sports related classes. 









Open Gym Schedule 
The Walnut Gymnasium has scheduled hours of open play for basketball, table tennis and badminton. Open Gym activities require a Gymnasium Membership which is $5.00 to start and $1.00 per visit. For more information please contact the Walnut Gymnasium at (909) 444-7959.
Spring Open Gym Schedule

Adult Basketball Leagues: Coed 
Leagues are offered year-round, Fall, Winter, Spring, and Summer. We offer a Novice and Intermediate division on both Wednesday and Thursday nights. Winter 2020 season has begun. Registration for the Spring 2020 season will begin in April, with games beginning on May 6 and 7.   Registration is on a first come first serve basis. All games will be held at the Walnut Gymnasium. Players must be 18 years or older to play. For more information please contact the Walnut Gymnasium at (909) 444-7959. 

Walnut Youth Basketball League  
The Walnut Youth Basketball league has two seasons; Spring and Fall. Divisions are co-ed and appropriate for children in first grade to eighth grade. Walnut Youth Basketball is a great opportunity for both the experienced and beginning player to develop fundamentals, learn basic skills, and gain team building experiences. Registration is on a first-come, first-serve basis. League fees are $110 for the first child and $100 for every other child (within the same immediate family) and include 10 games referees, scorekeepers, uniform and award. All new players must have proof of grade upon registration.

Registration for the Spring 2020 season is now full. 

Games will begin on Saturday, March 28, 2020.

Spring 2020 WYB flyer

Volunteer coaches are needed for all divisions, let us know if you are interested in coaching a team. For more information and availability please call the Walnut Gymnasium (909) 444-7959.  


Community Sports Leagues:

Walnut National Junior Basketball
For more information, please visit their website at

Walnut Region 624 AYSO

Walnut Youth Softball
For more information, please visit their website at or e-mail them at

Walnut Valley Pony Baseball
For more information, please visit their website at or email them at

Diamond Bar/Walnut FC Man United Soccer

 bball  fencing  


Photo Policy: On occasion, staff or independent photographers of the Community Services Department may take photographs or videos of participants in our programs, parks, and special events. Please be aware that these are for the department's use in future brochures, pamphlets or for local public access. If you object to having photos of you or your family used for future publication, you should notify the photographer at the time the photo is taken.




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