best vs sweep the board

best

verb
  • To beat in a contest. 

  • Had best. 

  • To surpass in skill or achievement. 

adv
  • To the most advantage; with the most success, cause, profit, benefit, or propriety. 

noun
  • The person (or persons; or thing or things) that is (are) most excellent. 

  • The supreme effort one can make, or has made. 

  • One's best behavior. 

adj
  • Most; largest. 

  • Most superior; most favorable. 

sweep the board

verb
  • To win all the prizes in a competition. 

  • To get enough votes in an election to gain all the seats. 

  • To take all of the cards. 

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