Winning a game awards players with a Victory Crown and if they win wearing one for the first time, they are rewarded with the Crowning Achievement Emote which count the number of Victory Royales wearing the Victory Crown each season.
The Victory Royale is what players earn when they win a game of fortnite. These will be tracked on your stats and will determine to other players how good you are at playing Fortnite: Battle Royale. Players will earn a victory royale around a month (on average) after they start playing Battle Royale. It may be less than that if they were previously playing Fortnite: Creative or Fortnite: Save the World. Winning a game awards players with a Victory Crown and if they win wearing one for the first time, they are rewarded with the Crowning Achievement Emote which count the number of Victory Royales wearing the Victory Crown each season.