FIP stands for Fielding Independent Statistics. It's one of the best statistics to determine how good a pitcher truly is by taking his defense behind him out of the equation. However, things the pitcher can control like walks and home runs are taken into account. Generally speaking, if a pitcher has a FIP higher than his ERA, his ERA will rise and if his FIP is lower than his ERA, his ERA will drop. Here's a list of pitchers with the greatest ERA/FIP splits.