prizefight vs shootout

prizefight

noun
  • A professional boxing match, in which two boxers compete for a prize (usually money). 

shootout

noun
  • A penalty shootout. 

  • A series of penalty shots during which a tied game is resolved. 

  • A multitable poker tournament in which only the last player on a table goes on to the next. 

  • A match in which both teams score highly. 

  • A decisive battle, especially a gunfight. 

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