run its course vs sprint

run its course

verb
  • To come to a natural end. 

sprint

verb
  • To run, cycle, etc. at top speed for a short period. 

noun
  • In Agile software development, a period of development of a fixed time that is preceded and followed by meetings. 

  • A burst of speed or activity. 

  • A short race at top speed. 

How often have the words run its course and sprint occurred in a corpus of books? (source: Google Ngram Viewer )