Here are rules from the BCA RuleBook...
BOWLLIARDS -- Except when clearly contradicted by these additional rules, the General Rules of Pocket Billiards apply.
TYPE OF GAME -- Bowlliards applies the scoring concepts of bowling to pocket billiards. It's one of the few games that can be quite interesting as a solitary exercise since, like bowling, there is a perfect game score to strive for, and a player can measure improvement quite easily over the course of time playing Bowlliards.
PLAYERS -- Any number.
BALLS USED -- Any 10 object balls, plus cue ball.
THE RACK -- Standard triangle position (front apex ball on the foot spot), using a 1-2-3-4 rack configuration.
OBJECT OF THE GAME -- To score a perfect score of 300 points in 10 frames (innings) in solitary play. In competition, to score a higher point total in 10 innings than opponent(s).
SCORING -- Each legally pocketed ball is scored as one point, regardless of ball number. The points scored per the "Rules of Play" below are treated exactly as is the pinfall in bowling.
OPENING BREAK -- At the start of player's inning (frame), he has a free break (no special ball-to-cushion or other requirements once break stroke commences, and a jumped or scratched cue ball is without penalty). Any balls pocketed on the break are spotted, and player follows break by beginning scoring play with object balls in position and cue ball in hand behind the head string. (The opening break takes place at the start of every inning.)
RULES OF PLAY
1. A legally pocketed ball entitles the shooter to continue at the table until failing to pocket a called ball on a shot, or until scoring (10), the maximum total per inning possible. The player may choose and shoot any ball, but before shooting, must designate a single ball that will be pocketed and the pocket into which the ball will score; the shooter need not indicate kisses, caroms, combinations or cushions (none of which are illegal) .
2. Player has two chances to pocket the 10 possible balls of each frame. If player legally pockets 10 consecutive balls on the first chance of a frame, that frame is completed and player scores the frame exactly as a strike in bowling. If player fails to pocket 10 consecutive balls on the first chance, the player takes a second chance immediately. If the shooter succeeds in legally pocketing the remaining balls of the 10 on the second chance, the frame is completed and player scores it exactly as a spare in bowling. If player fails to legally pocket all 10 balls in two chances, the frame is then completed and is scored just as in bowling; a "strike" in the 10th inning earns two extra shots, a spare one extra shot.
3. If players tie for high game total in competition, additional innings are played alternately by the tied players, with the first player posting a superior score to that of the opponent(s) being the winner ("sudden death ").
ILLEGALLY POCKETED BALLS -- On the break, illegally pocketed balls are spotted prior to player beginning scoring play (first chance of the frame). During scoring play, illegally pocketed balls are spotted.
OBJECT BALLS JUMPED OFF THE TABLE -- All spotted. The stroke is a foul and the penalty for fouls is followed.
CUE BALL AFTER JUMP OR SCRATCH -- Only applies if occurring as player's first foul of a frame, player has cue ball in hand behind the head string to begin a second chance of the frame.
PENALTY FOR FOULS -- One point is deducted from offender' sscore for each loul. If a foul ends the player's first chance of a frame, he has cue ball in hand behind the head string to begin his second chance of the frame.
