Cup stacking is a great competitive sport for students and families to challenge each other. There are many activities besides just stacking to time that families can enjoy. Try these few out: chase the fox (or fox and hound), partner stacking (1 person is the right hand, 1 is the left), stacking relay, rapid fire, how high can you stack, build something fun!
Cup stacking in sequence offers a great way to work on hand eye coordination. This is a great off the court/field/play surface way for athletes to sharpen their reaction time.