Rule

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

Rule 1

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

A fault is made when a served ball (1) Strikes the front wall, outside the red boundary lines. (2) Strikes the front wall and goes over the side-wall, back-wall or side-lines. (3) Strikes in front of ace or service line.

Mentioned here

How these ideas connect in this rule

together ×4together ×2together ×4together ×2together ×4together ×2Ace actionFault serve actionServe actionFront wall placeService line placeBall thingWall thing

No link to the other terms shown: Fault serve, Serve, Service line.