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Youth Basketball Leagues & Programs | National Junior Basketball
Founded in 1984 by Dennis Murphy, Jr., National Junior Basketball (NJB) has established itself as a premier youth basketball organization dedicated to fostering sportsmanship, player development, and community engagement. Our programs emphasize fundamental skill-building, teamwork, and character development for participants in grades K-12 across California, Hawaii, Arizona, and Nevada. With over 1,000,000 alumni, NJB offers year-round leagues, including Rookie Leagues for K-1st graders, Divisional Play for 2nd-8th graders, and advanced programs like All-Net and BYT for competitive players.

We provide structured training, certified referee programs, and national tournaments while maintaining a commitment to affordability and accessibility through low registration fees and tax-deductible donations. Our mission prioritizes youth development over adult ambitions, ensuring equitable team distribution through a draft system and promoting values like respect, integrity, and community service.
Services
Youth Leagues Rookie League BYT Program All-Net Program High School Leagues Skills Training Referee Clinics Coach Training National Tournaments Club Teams
Details
  • Year established: 1984
Highlights and features
  • We offer year-round basketball programs for grades K-12 with over 40 years of experience.
  • Our draft system ensures equitable team competition across all divisions.
  • We provide certified referee training and professional officiating standards.
  • We emphasize character development through our NJB Philosophy and Code of Ethics.
  • Our alumni network includes NBA and NCAA officials and players.
Associations and certifications
  • 501(c)(3) Non-Profit Organization
Services
Youth Leagues
NJB offers year-round basketball leagues for grades K-12, including Rookie Leagues for K-1st graders and Divisional Play for 2nd-8th graders. Our programs emphasize fundamental skill development, equitable team distribution through a draft system, and character building through sportsmanship education. Participants gain access to certified coaching resources and structured competition formats.
BYT Program
BYT (Bring Your Team) allows existing teams to compete in NJB leagues and tournaments for grades 2nd-8th. This program provides higher-level competition through structured divisions for boys and girls teams. Participants benefit from professional officiating, standardized game formats, and regional tournament opportunities in Southern California.
All-Net Program
All-Net offers winter-season elite training for players preparing for high school basketball in Silicon Valley and Central California. The program features skill-specific workouts, advanced tactical instruction, and competitive gameplay. Participants receive specialized coaching from experienced trainers and access to tournament-level competition.
Referee Clinics
NJB provides comprehensive referee training programs with clinics for new and experienced officials. Training includes mechanics development, game management techniques, and certification processes. Participants receive rulebooks, practice resources, and opportunities to officiate in organized games with professional mentorship.
National Tournaments
NJB hosts national championship tournaments attracting over 900 teams annually. The Championship Series includes sectional all-star tournaments and culminates in the National All-Star Tournament. These events provide competitive opportunities for top-performing teams while emphasizing sportsmanship and fair play principles.
People
Dennis Murphy
Founder
Dennis Murphy founded NJB in 1984 while coaching at Garden Grove High School. He developed the organization's philosophy emphasizing sportsmanship and player development over adult ambitions. His leadership established NJB's core values and expansion to four states.
John Butler
NBA Official
John Butler, an NJB referee alumnus, became a professional NBA official. His career demonstrates NJB's success in developing officiating talent through structured training programs. He represents the organization's commitment to professional growth opportunities for referees.
Questions
What age groups does NJB serve?
NJB serves youth in grades K-12, with specific programs for K-1st graders (Rookie League), 2nd-8th graders (Divisional Play), and high school students.
How are teams formed in NJB leagues?
Teams are formed through a draft system ensuring equitable distribution of talent and size across all divisions, following the Griffin method for fair competition.
Can existing teams join NJB programs?
Yes, existing teams can join through the BYT (Bring Your Team) program, which accommodates competitive teams in Southern California for grades 2nd-8th.
What training resources are available for coaches?
NJB provides coaching clinics, rulebooks, practice plans, and video resources. Coaches must complete background checks and Safe Sport Act training before participation.
Are there opportunities for advanced players?
Advanced players can participate in All-Net and Stars programs offering higher-level competition, specialized training, and tournament opportunities for grades 3rd-12th.
How can adults get involved with NJB?
Adults can volunteer as coaches, referees, or chapter directors. The organization provides training programs for all roles and offers sponsorship opportunities for businesses.