quarterfinal vs rematch

quarterfinal

noun
  • A competition that narrows a field of contestants (quarterfinalists) to a set of semifinalists, for a subsequent final. 

  • One of the four competitions in a knockout tournament whose winners go on to play in the two semifinals. 

rematch

noun
  • A repeated contest staged between the same opponents or teams which played a previous contest. 

verb
  • To stage such a contest. 

  • To bring opponents together for such a contest. 

  • To match again or anew. 

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