Bowldle · Tools
What do I need to bowl? Series and average goal calculator
Updated
Chasing a 600 series or trying to raise your average? Enter what you've bowled so far and your goal, and see exactly what you need from the games you have left.
What do I need in game 3?
Leave game 2 empty to see what you need over the last two games, and the average per game that takes.
What do I need to raise my average?
How the math works
- Series: subtract what you've bowled from your goal. A 600 series with games of 201 and 188 needs 600 − 389 = 211 in game 3.
- Average: your goal average times all your games (so far plus left) is the total pins you need. Subtract the pins you already have, then divide by the games left. Going from a 165 to a 170 average over 30 + 9 games needs 39 × 170 − 30 × 165 = 1,680 pins, or about 187 a game.
Because averages drop fractions, the exact pins behind your current average can be up to one pin a game higher than the calculator assumes, so treat the result as the most you could need.
Common questions
What is a 600 series in bowling?
600 pins over three games, an average of 200 a game. It's a milestone many league bowlers chase; 700 and 800 series are rarer still, and 900 is three perfect games.
What's the highest series possible?
900: three 300 games in a row.
How long does it take to raise an average by 10 pins?
The more games behind your average, the slower it moves. Early in a season a few good nights can move it a lot; late in the season you need many games well above it.
Work out your current average with the bowling average calculator, or your handicap with the bowling handicap calculator.