AYSO Regulations: Size of Ball

• U-19, U-16 and U-14 Divisions: must be 26.5 to 28.0 inches in circumference and weigh between 14 and 16 ounces (Size 5)
• U-12 and U-10 Divisions: must be 25.0 to 26.5 inches in circumference and weigh between 12 and 14 ounces (Size 4)
• U-8 and U-6 Divisions: must be 23.0 to 25.0 inches in circumference and weigh between 10 and 12 ounces (Size 3)