If you want to be right downtown for a bar, I'd suggest Scotty's or Kilroy's. While I don't love either, both will be full of basketball fans and are the best of subpar bar options downtown (if you have more time this weekend, the Mass Ave area is much better for food/bars, and is in the downtown area too). I was going to say, Mass Ave would be the best place to go but its on the other end of downtown I believe, but the bars are of a much higher quality. Also love the outdoor deck at the Rathskeller on a nice night.