What does negative split mean in running?

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Tags

1. #increase
2. #negative
3. #first
4. #encyclopedia
5. #involves
6. #second
7. #speed
8. #defined
9. #racing
10. #initial
11. #wikipedia
12. #split
13. #faster
14. #completing
15. #gradual
16. #towards
17. #slower
18. #followed
19. #setting
20. #intentional
21. #strategy
22. #sudden