Where does up to scratch come from?

Related questions

1. What is a scathing report?
2. What is the origin of what's up?
3. What does swept under the rug mean?
4. What does scratch mean in slang?
5. How do you make a scratch card?
6. What does the idiom mumbo jumbo mean?
7. Can you do everything from scratch?
8. Is Rough paper allowed in GRE?
9. Why is it called scratch golfer?
10. Can you bring water to GRE?

Tags

1. #phrases
2. #encounter
3. #boundary
4. #pugilism
5. #crease
6. #across
7. #point
8. #indication
9. #cricket
10. #hence
11. #brought
12. #starting
13. #which
14. #bring
15. #boxers
16. #often
17. #scratch
18. #drawn
19. #various