What Regresson Algorithm Would Fit This Data?
This answer is based on additional information provided in a comment:


  what is x, y?
  Balls 1,2,3 = Y, Date = X


Lotteries and other games (such as Casino games) are designed so that one is (or should be) unable to predict what happens. For instance in roulette, you could win a lot of money by applying the St Petersburg paradox. However, casinos restrict the sequence of playing so that you have no chance to do this. 

WRT lotteries, the data generating process is supposed to be 100% random. This means that your X (the date) does not carry structural information about the outcome (y). Consequently, there is no way to make a reasonable prediction of what the numbers of next week would be.