This page will help calculating some of the basic bowling statistics, such as the average, strike rate and economy.
The bowling average is the number of runs conceded on average to get a wicket (via Wikipedia). So, it'll be runs conceded ÷ wickets taken.
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The bowling strike rate is the average number of deliveries bowled for every wicket taken (via Wikipedia). So, it'll be deliveries bowled ÷ wickets taken.
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The economy rate is the average number of runs conceded per over (via Wikipedia). For example, if a bowler has given 24 runs in 4 overs across a T20 spell, then their economy is 6.00. But that being said, if in some other match in progress, they've given 24 runs in 3 overs, their economy at that point in time is 8.00, but if the fourth and final over sees them getting tonked and smashed around the park for a whopping 26 runs, that means they have now conceded 50 runs across their 4 overs, so their economy is now 12.50 (expensive!).
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