Star Ranks are a classification on how skilled a player is on Mario Kart: Super Circuit, Mario Kart DS, Mario Kart Wii, Mario Kart 7, and Mario Kart 8. The player earns them for Grand Prix and Mission Mode. There are three variations of star ranks. There's 1-star rank, 2-star rank, and 3-star rank, 3-star being the hardest to earn.
- Wii version explanation (should probably also mostly apply to DS version): http://www.gamefaqs.com/boards/942008-mario-kart-wii/43533083