The correct ball size for each grade level in MBA programs.
Use this guide to choose the right basketball for practice at home. MBA uses these same sizes in league play.
| Grade | Ball Size | Circumference | Used By |
|---|---|---|---|
| Grades 3 & 4 (Boys & Girls) | Size 5 — Youth | 27.5" | Ages 9–11 |
| Grades 5 & 6 (Boys & Girls) | Size 6 — Intermediate | 28.5" | Ages 12+ / Women's |
| Grades 7 & 8 Girls | Size 6 — Intermediate | 28.5" | Women's official |
| Grades 7 & 8 Boys | Size 7 — Official | 29.5" | Men's official |
Players are encouraged to practice with the same size ball used in their league. Using the correct size helps with shooting form, ball handling, and confidence on game day.