Bowling Scoring Basics
The Game
A game of bowling consists of 10 frames. A frame is an opportunity for a bowler to knock down all 10 pins with up to two rolls of a bowling ball.
The Pins
There are 10 pins set up in a triangle formation. You will try to knock down as many pins as you can with your two rolls.
Scoring
The score for each frame is based on the number of pins you knock down.
- A simple roll is when you use both balls in a frame and do not knock down all 10 pins. Your score for that frame is the total number of pins knocked down.
- A Strike (X) is when you knock down all 10 pins with your first ball. You will not roll a second ball for this frame. Your score for this strike frame is 10 plus the number of pins knocked down on your next two rolls.
- A Spare (/) is when you knock down all 10 pins using both of your rolls in a frame. Your score for this spare frame is 10 plus the number of pins knocked down on your next roll.
- A Strike (X) in frame 10 with the first ball. If you get a strike with the first ball in frame 10 you will roll 2 more balls. This rule is only for frame 10!
- A Spare (/) in frame 10 If you get a spare in frame 10 with your first 2 balls you will roll one more ball. This rule is only for frame 10!
The maximum score for a perfect game is 300.
Scoring Examples
Let's walk through some examples to show how strikes and spares are scored.
Example 1: A Simple Game
Imagine you have a game with no strikes or spares. You roll a 5 on your first ball and a 3 on your second ball in every frame.
- Frame 1: 5 + 3 = 8 pins knocked down. Your total score is 8.
- Frame 2: 5 + 3 = 8 pins knocked down. Your total score is 8 + 8 = 16.
If for some chance you continued to roll a 5 and then a 3 for all 10 frames your final score would be 8 (pins) x 10 (frames) = 80.
Example 2: Scoring a Strike
Starting over now - let's see how a strike changes the score.
- Frame 1: You knock down 8 pins (5 on the first ball, 3 on the second). The score for frame 1 is 8. Your total score is 8.
- Frame 2: You get a strike (X). You knock down all 10 pins on your first ball. You cannot calculate the frame 2's score yet because you need to wait for your next two rolls.
- Frame 3: You roll your first ball and knock down 7 pins. Then you roll your second ball in frame 3 and knock down 1 more pin.
Now you can score the strike in Frame 2.
- Total Score to this point in Frame 3: 26 (from Frame 2) + 8 (frame 3) = 34.
Example 3: Scoring a Spare
Let's continue from the previous example.
- Frame 4: You roll your first ball and knock down 5 pins. On your second ball, you knock down the remaining 5 pins. You get a spare (/).
You cannot calculate your score for Frame 4 yet because you need to wait for your next roll which will come in frame 5.
- Frame 5: You roll your first ball and knock down 8 pins.
Now you can score the spare in Frame 4.
- Frame 4 Score: 10(bonus for the spare) + 8(first roll of frame5) + 34(the score in frame 3) = 52
- Total Score after Frame 4: 52.
The 10th Frame
The final frame is a little different.
- If you get a strike on your first roll, you get two more bonus rolls to complete your score.
- If you get a spare with your first two rolls, you get one bonus roll to complete your score.
You will only ever roll a maximum of three balls in the 10th frame.
Hope this helps, try it out on the calculator