The Basics: 10 Frames, 10 Pins
A bowling game has 10 frames. In each frame, you get up to two balls (throws) to knock down all 10 pins. Your goal is simple: knock down as many pins as possible.
After each frame, the pins you knocked down are added to your score — but strikes and spares give you bonus points, which is where it gets interesting.
What Is a Strike?
A strike is when you knock down all 10 pins with your first ball. It's marked with an "X" on the scorecard.
Here's the bonus: when you get a strike, your score for that frame is 10 plus the total pins from your next two balls. That means a strike is worth more when you follow it up with good throws.
What Is a Spare?
A spare is when you knock down all 10 pins using both balls in a frame. It's marked with a "/" on the scorecard.
The bonus for a spare: your score for that frame is 10 plus the pins from your next ball only (not two balls like a strike).
So if you pick up a spare, then knock down 8 pins on your next throw, the spare frame is worth 10 + 8 = 18 points.
What Is an Open Frame?
An open frame is when you don't knock down all 10 pins in two attempts. There's no bonus — you just score the number of pins you knocked down.
If you knock down 6 on your first ball and 2 on your second, that frame scores 8. Open frames are where most bowlers lose points without realising it.
The 10th Frame Is Special
The 10th frame has different rules to give you a chance to earn your bonuses:
- If you roll a strike in the 10th, you get two extra balls
- If you pick up a spare in the 10th, you get one extra ball
- If you leave it open, you're done — no extra balls
This means you can roll up to three balls in the final frame. The best possible finish is three strikes in the 10th (called "striking out"), which adds 30 points to your score.
How Scores Add Up
Scores are cumulative — each frame's score builds on the last. Here's a quick example:
Frame 2: 7, then spare → 20 + 10 + 8 = 38
Frame 3: 8 pins, then 1 pin → 38 + 9 = 47
A perfect game — 12 strikes in a row — scores 300. Most recreational bowlers score between 80 and 140. League bowlers typically average between 150 and 200.
Quick Reference
- Strike (X): 10 + next 2 balls
- Spare (/): 10 + next 1 ball
- Open frame: just the pins you knocked down
- Gutter ball: 0 pins (marked with a "—")
- Perfect game: 300 points (12 consecutive strikes)
- Minimum possible: 0 (all gutter balls)
Now that you know how scoring works, you'll understand exactly why strikes and spares matter so much — and why tracking them can help you improve faster.