def last_round
      last_round = 0
      @player.values.each do |p|
        p.results.each do |r|
          last_round = r.round if r.round > last_round
        end
      end
      last_round
    end
def last_round
      last_round = 0
      @player.values.each do |p|
        p.results.each do |r|
          last_round = r.round if r.round > last_round
        end
      end
      last_round
    end
Return the greatest round number according to the players results (which may not be the same as the set number of rounds).