Online Graded Category

Grade 1A : <=7 years old, Grade 1B : 7-9 years old, Grade 1C : 9-11 years old, Grade 1D : 11-13 years old, Grade 2A : <=8 years old, Grade 2B : 8-10 years old, Grade 2C : 10-12 years old, Grade 2D : 12-14 years old, Grade 3A : <=9 years old, Grade 3B : 9-11 years old, Grade 3C : 11-13 years old, Grade 3D : 13-15 years old, Grade 4A : <=10 years old, Grade 4B : 10-13 years old, Grade 4C : 13-16 years old, Grade 5A : <=11 years old, Grade 5B : 11-14 years old, Grade 5C : 14-17 years old, Grade 6A : <=12 years old, Grade 6B : 12-18 years old, Grade 7A : <=13 years old, Grade 7B : 13-19 years old, Grade 8A : <=14 years old, Grade 8B : 14-20 years old