MLB Pipeline's Top 100 prospects list changes greatly from the start of the season to it's conclusion. There are graduates, additions and subtractions during our full re-rank over the summer and this year, for the first time, we introduced Market Corrections to reflect changing thoughts on the top prospects in the game. The 20 hitters listed below made the biggest leap in 2018, either from off the list entirely, or lower down, to much higher on the Top 100. We'll take a look at pitchers next week.