Rule

Y.M.C.A. Four-Wall Rules · American four-wall

Rule 5

Historical rulebook: not the current rules. The current rules are here (USHA Four-Wall Rulebook, as of 26 January 2025).

A server's partner must be in box when ball strikes front wall from service.

Mentioned here

How these ideas connect in this rule

No link to the other terms shown: Partner, Server.