Rule

A.A.U. Four-Wall Hardball Rules · American four-wall hardball (1930s-40s)

Rule 9

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

Should the server or his partner step outside the short-line before a served ball has crossed that line, a short ball shall be declared against the serving side.

Mentioned here

How these ideas connect in this rule

together ×5together ×4together ×6together ×5together ×6together ×6Partner actorServer actorServe actionShort serve actionBall thing

4 weaker links (terms mentioned together in few sub-rules) are not drawn.