How do you determine a winning and losing pitcher?

Related questions

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2. What can be found in a pitcher?
3. What is an ewer used for?
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5. How many beers is a small pitcher?
6. How many drinks are in a pitcher?
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Tags

1. #number
2. #decision
3. #awarded
4. #event
5. #calculated
6. #dividing
7. #pitcher
8. #percentage
9. #commonly
10. #places
11. #decisions
12. #three
13. #decimal
14. #expressed
15. #winning
16. #losses