The lists, comprised of "A," "B" and "C" players for the upcoming season in each of the major junior hockey leagues, are sent to NHL team scouts for the purpose of tracking the top draft-eligible players entering the 2017-18 season. All "A" skaters have been identified as potential first-round picks, while "B" players are considered second- or third-round candidates. The players on the "C" list are thought to be fourth-, fifth- or sixth-round possibilities. Central Scouting's preliminary rankings will be revealed in November. That list includes the top 25 prospects for each of the various leagues throughout North America and Europe.