BC1 is for athletes with moderately affected movement in the arms and shoulders and highly affected in trunk and legs.
Athletes overcome poor trunk control and sitting balance to throw with purposeful direction.
BC2 is for athletes with movement affected from a low to moderate level in the trunk and limbs or a high level in the legs.
Athletes have moderate trunk control and sitting balance and can throw in different ways with purposeful direction.
BC3 is for athletes with movement moderately affected in the trunk and to a high degree in the limbs.
Athletes use a ramp to deliver the ball onto the court via a mouth pointer, head pointer or finger release.
BC4 is for athletes with coordination skills moderately affected, movement affected to a high degree in the trunk and legs with affected arms, or the absence of limbs.
Athletes in this class typically have to overcome fatigue during matches.