hands down vs with one arm tied behind one's back

hands down

adv
  • without question; undoubtedly 

  • without much effort; easily 

  • by a large margin (in a game or contest) 

  • Used other than figuratively or idiomatically: see hands, down. 

with one arm tied behind one's back

How often have the words hands down and with one arm tied behind one's back occurred in a corpus of books? (source: Google Ngram Viewer )