Scoring in bowling is calculated on a rolling basis and is based on the outcome of each frame. In bowling there are 10 frames. A frame is made up of two bowls, so the bowler gets to throw the ball down the lane at the pins twice per frame.
There are 10 pins set up at the back of the lane. If you knock all 10 pins on the first bowl it's called a strike. If you eventually knock all 10 pins on your second bowl it's called a spare. Finally, if you fail to knock down all 10 pins it's called an open frame.
When you're bowling you will see the following symbols appear on the screen that indicate the total running score on the current frame.
|X or x||Strike|
|-||No pins knocked down|
|5 4||1st roll versus 2nd roll|
The minimum score for a single bowling game is 0 and the maximum score is a 300. For each frame, a person gets two attempts to knock over all of the pins. A perfect score would be a strike for every frame.
An open frame is when the bowler fails to knock down all 10 pins with both bowls. An open frame is most common for amateur players and is scored by adding up the sum of the amount of pins that were knocked over on both bowls.
For example, if you knock two pins over on the first bowl and six pins over on the second attempt, then the open frame score would be 8 points.
A spare, indicated by a slash / on a scorecard, happens when you knock down all 10 of the pins on your second attempt for the frame. When a spare is earned, it is used to calculate the score on the next frame.
A strike is also worth 10 points, but instead of taking the score of the first roll of the next frame, the total score of the next two rolls is taken.
The bowler gets an additional roll if a spare is earned and two additional rolls if a strike is earned on the 10th frame. The total number of pins knocked down are added to the running total.
|Pins||5 4||4 /||7 -||X -||X -||X -||5 3||6 /||4 /||X X X|
Let's walk through the above scoring example step by step:
It is possible to score a maximum of 300 points in a game of bowling.