Rules for One-Wall
1. Wall
The wall shall be 20 feet wide from the outside edge of one side line to the outside edge of the other side line, and 16 feet high, including any top line.
2. Floor
The floor shall be 20 feet wide from the outside edges of the side lines. It shall be 34 feet from the wall to the outside edge of the long line. The side lines should extend at least three feet beyond the long line. There should also be a minimum of at least six feet, but ideally 20 feet, of floor beyond each side line as well as 16 feet beyond the long line to allow for playing space.
3. Short Line
The short line runs parallel to the wall with the back edge of the line 16 feet from the wall.
4. Service Markers
There shall be service markers, lines of a at least six inches in length extending inward from the side lines, parallel to the short and long lines and located midway between them. The imaginary extension of these lines across the court indicates the service line.
5. Serving Zone
The serving zone is the floor area inside and including the short, service and side lines.
6. Receiving Zone
The receiving zone is the floor area beyond the short line, inside and including the side and long lines.
7. Playing Zone
The playing zone is the floor area between the front wall and the outside edges of the side and long lines.
8. Wall Edge
The top edge of the wall, if any, is not part of the court. A ball striking the top edge is an out.
9. Hitting Spectators
A ball that hits a spectator before hitting the wall shall be considered an out.
GENERAL
Shirts are not required for outdoor play unless requested by opponent. Also, uniforms should be light-coloured.
Line Judges
Linesmen. There shall be a linesman for each of the side lines, the short line and the long line. Their duties shall be to call "out" the balls that hit beyond their respective lines. The short-line linesman may also call foot faults, skip balls and double bounces at the discretion of the referee.
Doubles
Partner's service position. While a player is serving, his partner must stand outside the side lines, astraddle the indicated service line. The partner may not enter the playing zone until the served ball passes him. Violations are called foot faults.
One-Wall Dead Ball Hinders
Delete the four-wall hinders per USHA rules pertaining to:
3. Body contact
4. Screen ball
5. Straddle ball
6. Backswing hinder
7. Safety hold-up
8. Other interference
Add one-wall hinder rules:
(A) Standing Still. If a player attempting to play a ball suffers from interference by an opponent who remained perfectly still after hitting his shot, there is no hinder. This legal block is the essence of one-wall handball. Movement is permitted by the offensive team until the ball is struck, and this includes movement to gain court position in front of an opponent while the partner is hitting the ball.
However, if a player on the side that has just hit the ball remains perfectly still, but the opponent moves back into him in trying to play the ball, not necessarily making contact, and is kept from having a fair chance to play the ball, it is a hinder. It is the duty of the player further from the wall to get out of the way.
B. Being moved into ball. If a player on the defensive team is moved or pushed unintentionally into the ball by an opponent who is trying to play the ball, it is a hinder.
C. Ball hits opponent on way to wall. This is always a hinder, regardless of whether the referee felt the ball would have made the wall on the fly.
D. Spectator Interference. If a non-seated spectator or official interferes with a player in his attempt to play a ball, it is a hinder.
E. Hinder Fault. During a rally, if a player on the serving side creates a hinder called by the referee, the serving side starts the ensuing service with a fault.
Postponed by referee. Any games postponed by referee (due to weather or darkness) shall be resumed with the same score, etc. just as if the game had continued uninterrupted.