reward vs sweep the board

reward

verb
  • To recompense. 

  • To give a reward to or for. 

noun
  • Something of value given in return for an act. 

  • A prize promised for a certain deed or catch 

  • The result of an action, whether good or bad. 

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 reward and sweep the board occurred in a corpus of books? (source: Google Ngram Viewer )