A multiplex throw is two or more balls thrown from the same hand at the same time. Split multiplexes are throws that deliver balls to more than one hand. Balls can be thrown to the same height or different heights.
Grouped multiplexes are throws that deliver all balls to a single hand.
Both same-hand grouped throws and crossing grouped throws are possible. In either case, balls can be thrown to the same height or different heights. When thrown to the same height, however, this multiplex is difficult to catch, so most common is the differing height, or stacked , multiplex. The tricks are arranged roughly in order of increasing complexity and difficulty. If you are new to multiplexes, practice these throws in the order presented.