As of this blog post, the Pittsburgh Pirates are tied with the St. Louis Cardinals for the best record in Major League Baseball. This is nothing new for the Pirates. First half success has been the theme of the Clint Hurdle era. Don't ask about the second half of those three seasons.
The Pirates have been really good before the All-Star Break, but they haven't been the best in the National League. Here's some crude research I put together with some help from Baseball Reference. Feel free to check and correct my math.
