| Consideration | Decision | |
|---|---|---|
| Did interference occur? | NO | NO LET |
| YES | ||
| Was the interference minimal? | YES | NO LET |
| NO | ||
| Could the obstructed player have got to the ball and made a good return and was that player making every effort to do so? | NO | NO LET |
| YES | ||
| Did the obstructed player move past the point of interference and play on? | YES | NO LET |
| NO | ||
| Did the obstructed player create the interference in moving to the ball? | YES | NO LET |
| NO | ||
| Did the opponent make every effort to avoid interference? | NO | STROKE to player |
| YES | ||
| Did the interference prevent the player's reasonable swing? | YES | STROKE to player |
| NO | ||
| Could the obstructed player have made a winning return? | YES | STROKE to player |
| NO | ||
| Would the obstructed player have struck the opponent with the ball going directly to the front wall or if going to a side wall would it have been a winning return? | YES | STROKE to player |
| NO | YES LET |