Competitive Mario Kart has its own rating system (called MMR, or Matchmaking Rating), which is a number that determines your skill. Unlike online worldwides, we can pick any regular track, and intermissions are not allowed!

Full Guide on how to WIN more in Mario Kart World: https://www.youtube.com/watch?v=Nx35J4Muqy4
How to do ALL the best shortcuts: https://www.youtube.com/watch?v=-MroDtkfhY0
How to play regular tracks online: https://www.youtube.com/watch?v=eLIt4s7NKM0

How to join competitive:
– https://lounge.mkcentral.com/mkworld
– Click on the Discord invite link at the top
– Read the rules and follow the instructions
– You can ask questions in the Discord!

source