Sports Leagues
Adult Basketball Leagues (ABL): Coed
Leagues are offered year-round, Fall, Winter/Spring, and Summer. 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. League uses CIF rules and regulations to govern the league in addition to City rules. Game times start between 7:15 p.m. to 10:30 p.m.
Fall: Thursday Night Tournament Starts September 18, 2025.
For more information, view the ABL flyer (PDF, 4MB)here(PDF, 4MB).
Walnut Youth Basketball League (WYB)
Winter
Practices begin the week of December 1, 2025
Games: Saturdays, January 10 – March 7, 2026
Resident Registration: October 20, 2025
Non-Resident Registration: October 27, 2025
Registration is IN PERSON ONLY and on a first-come first-serve basis. Registration is taken Monday through Friday at the Walnut Gymnasium and Teen Center.
For more information, please see the flyer here(PDF, 4MB) or call the Walnut Gymnasium and Teen Center at (909) 444-7959.
Walnut Youth Volleyball League (WYVB)
This is a co-ed league with all practices and games to be held at the Walnut Gymnasium and Teen Center. Practices will be once a week for an hour and is dependent on volunteer coaches.
Division A: 7th & 8th Grades
Division B: 5th & 6th Grades
All participants MUST attend a skills clinic on Saturday September 6, 2025
Practices will begin the week of September 15, 2025.
Games: Saturdays, October 4 – November 1, 2025
Resident Registration: August 11, 2025
Non-Resident Registration: August 18, 2025
Registration is IN PERSON ONLY and on a first-come first-serve basis. Registration is taken Monday through Friday at the Walnut Gymnasium and Teen Center.
For more information, please view the flyer here(PDF, 4MB) or call the Walnut Gymnasium and Teen Center at (909) 444-7959.
Community Sport Leagues
Walnut Region 624 AYSO
Walnut Youth Softball
For more information, please visit their website or email them at walnutyouthsoftball@gmail.com.
Walnut Valley Pony Baseball
For more information, please visit their website or email them at info@walnutponybaseball.com.
Diamond Bar/Walnut FC Man United Soccer
To inquire more about Community Sports Leagues, please contact Public Works at (909) 598-5605.
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.