in contention vs undisputed

in contention

prep
  • Used other than figuratively or idiomatically: see in, contention. 

  • Contending for a title or championship. 

undisputed

adj
  • Universally agreed upon; not disputed 

  • Unchallenged and accepted without question 

How often have the words in contention and undisputed occurred in a corpus of books? (source: Google Ngram Viewer )