Bowling economy and strike rate are the two numbers that tell you whether a bowler is hard to score off and how often they take wickets. Economy measures runs conceded per over, while strike rate measures how many balls a bowler needs per wicket. This guide explains both, plus bowling average, with worked examples you can repeat yourself.
What bowling economy measures
Economy rate is the average number of runs a bowler concedes per over. The formula is runs conceded divided by overs bowled. A low economy means the bowler is tight and hard to score off.
Take a bowler with figures of 10 overs and 45 runs. The economy is 45 divided by 10, which equals 4.50 runs per over. In ODIs, an economy under 5.00 is good. In T20s, anything under 7.00 is strong, and under 6.00 is excellent. As a rough benchmark in Indian conditions, a new-ball seamer who keeps an ODI economy near 5.00 while chipping in with a wicket or two has done a good job, and a spinner who goes at under 5.00 through the middle overs is squeezing the batters hard.
Handling part-overs in the calculation
Overs are counted in balls, so a part-over needs care. If a bowler bowls 7.3 overs, that is 7 overs and 3 balls, which is 7.5 overs in decimal because 3 balls is half of a 6-ball over (3 divided by 6 equals 0.5).
Suppose that bowler conceded 60 runs in 7.3 overs. Convert to decimal: 7.5 overs. Economy is 60 divided by 7.5, which equals 8.00 runs per over. A common mistake is dividing by 7.3 directly, which gives the wrong answer. Always convert balls to a fraction of six first.
What bowling strike rate measures
Bowling strike rate is the average number of balls a bowler delivers for each wicket they take. The formula is balls bowled divided by wickets taken. A lower strike rate means the bowler strikes more often, so it is prized by attacking captains.
If a bowler delivers 60 balls (10 overs) and takes 4 wickets, the strike rate is 60 divided by 4, which equals 15.0. That means a wicket roughly every 15 balls, or about every two and a half overs. In Test cricket a strike rate under 50 is excellent for a frontline bowler. To picture it, a strike rate of 50 means a wicket roughly every 50 balls, a little over eight overs, which across a long innings adds up to several wickets per spell.
Bowling average ties it together
Bowling average is runs conceded per wicket: runs divided by wickets. For a bowler who concedes 45 runs and takes 4 wickets, the average is 45 divided by 4, which equals 11.25 runs per wicket. Lower is better. There is a neat relationship: bowling average equals economy multiplied by strike rate, then divided by six. Using our numbers, 4.50 times 15.0 divided by 6 equals 11.25, which matches.
Economy versus strike rate: which matters more?
It depends on the role and format. A defensive bowler in the middle overs is judged mainly on economy, because the job is to choke runs. A strike bowler with the new ball is judged on strike rate, because the job is to take early wickets even if a few boundaries leak. T20 death bowlers need a low economy above all. The same logic appears on the batting side, where you read scoring numbers together rather than alone, as explained in what strike rate and batting average mean in cricket.
Reading bowling figures on a card
On a scorecard, a bowler’s line appears as four numbers: overs, maidens, runs, wickets, for example 9-1-38-3. From this you can work out economy (38 divided by 9 equals 4.22) and, if you know the wickets and balls, the strike rate (54 balls divided by 3 wickets equals 18.0). If reading those columns is new to you, start with how to read a cricket scorecard like a pro. And because a tight economy directly improves a team’s chances in close groups, it also feeds into net run rate in cricket.
Putting it together: judging a bowler’s spell
To read a spell properly, look at bowling economy and strike rate side by side rather than in isolation. Imagine two bowlers in the same ODI. Bowler X returns 10-0-40-1: an economy of 4.00 but a strike rate of 60 balls per wicket. Bowler Y returns 10-0-65-4: an economy of 6.50 but a strike rate of just 15. X kept it tight; Y won the game by taking wickets. Which was better depends on what the team needed at that moment.
Dot balls and maidens add useful colour. A maiden over, where no runs are scored, builds pressure that often forces a wicket the next over, even though it does not change the bowler’s wicket column. Counting dot balls in a T20 spell can reveal a bowler who is quietly squeezing the batters even when wickets are not falling to him.
Conditions matter too. On a flat pitch a death-overs economy of 9.00 might still be a good effort, while on a bowler-friendly surface the same figure would look poor. Always read the numbers against the match situation, the pitch and the phase of the innings before judging a bowler. Over a career the same logic scales up: a frontline Test bowler with an average under 25, a strike rate under 55 and an economy near 3.00 is genuinely world class, because all three numbers point the same way.
Worked example: comparing two full spells
Put two ODI bowlers side by side and calculate all three numbers for each. The figures read overs-maidens-runs-wickets.
| Bowler | Figures | Economy | Strike rate | Average |
|---|---|---|---|---|
| Bowler P | 10-1-40-1 | 4.00 | 60.0 | 40.0 |
| Bowler Q | 10-0-58-4 | 5.80 | 15.0 | 14.5 |
For Bowler P, economy is 40 divided by 10 equals 4.00; strike rate is 60 balls divided by 1 wicket equals 60.0; average is 40 divided by 1 equals 40.0. For Bowler Q, economy is 58 divided by 10 equals 5.80; strike rate is 60 balls divided by 4 wickets equals 15.0; average is 58 divided by 4 equals 14.5. Bowler P was far tighter, but Bowler Q took the wickets that win matches. Neither is simply “better” — it depends on what the captain needed at that stage of the innings.
How the numbers shift by phase of the innings
Good benchmarks change depending on when a bowler operates. Reading economy and strike rate against the phase stops you judging a death bowler by powerplay standards.
- Powerplay (new ball): a higher economy is accepted because field restrictions help batters; a low strike rate matters most, as early wickets are gold.
- Middle overs: economy is king, with spinners aiming for under 5 in ODIs and under 7 in T20s while quietly hunting a wicket.
- Death overs: economy matters above all, because conceding 12 an over at the end can lose a game even with a wicket or two.
So a T20 death bowler going at 9 an over while taking two wickets may have done a fine job, while the same economy in the middle overs would look poor.
Dot ball percentage: the hidden stat
Economy and strike rate do not capture everything. Dot ball percentage — the share of deliveries from which no run is scored — reveals a bowler who is squeezing the batters even when wickets are not falling. If a bowler sends down 24 balls in a T20 and 14 are dots, the dot ball percentage is 14 divided by 24, which equals about 58 per cent. A high figure builds the same scoreboard pressure as a maiden, forcing batters into risks that often bring a wicket at the other end. Selectors increasingly track this number alongside economy to spot bowlers who control the run rate.
Frequently asked questions
What is a good economy rate in T20 cricket?
In T20s, an economy under 7.00 runs per over is considered good and under 6.00 is excellent, especially at the death when batters attack. Spinners in the middle overs often aim for under 7, while pace bowlers defending the final overs do well to stay near 8.
Can a bowler have a great economy but a poor strike rate?
Yes. A defensive bowler might concede very few runs per over yet rarely take wickets, giving a low economy but a high strike rate. Such bowlers are valuable for building pressure, even though attacking captains may prefer a wicket-taker with a slightly higher economy.
Why do I divide by 7.5 and not 7.3 for 7.3 overs?
Because an over has six balls, 7.3 overs means 7 overs and 3 balls. Three balls is half an over, so in decimal it is 7.5, not 7.3. Always convert the part-over to a fraction of six before dividing runs to get the correct economy rate.
Is a lower bowling average always better?
Yes, a lower bowling average is better because it means the bowler concedes fewer runs for each wicket taken. A Test average under 25 is very good. But read it with strike rate and economy, since average alone does not show whether wickets came quickly or runs were leaked.
What is a good bowling average in ODI cricket?
In ODIs a bowling average under 30 runs per wicket is good and under 25 is excellent for a frontline bowler. Read it together with economy and strike rate, because a low average built on cheap wickets in easy conditions is less impressive than one earned on flat batting pitches.
Which matters more for a death bowler, economy or strike rate?
Economy matters most at the death. In the final overs batters attack everything, so a bowler who concedes few runs protects the total even without taking wickets. A wicket is a welcome bonus, but a death bowler who goes at 12 an over is a liability however many wickets they grab.
Conclusion
Bowling economy and strike rate answer two questions: how tight is the bowler, and how often do they strike? Add bowling average and you have a complete picture. Practise the formulas on a live card, remember to convert part-overs to decimals, and you will judge bowlers as confidently as any commentator.
