Un-ranked matches rotate two maps every few hours to diversify gameplay and allow players to enjoy more options during their games. Ranked games, however, use a single map for all matches for half of each season, called a split. Ranked splits occur roughly halfway through a ranked season. All players get their RP partially reset when a split happens, which drops every players rank by 1.5 tiers. This is a good way to push inactive players down the tier list and allow new talent to rise among the ranks. When a ranked split happens, the active map changes for the remainder of that ranked season.