In Rocket League, you need to reach a certain skill level in order to participate in ranked (competitive) matches. The exact skill level required will vary depending on the division you are trying to enter.
To be eligible for ranked play, you will need to play a certain number of unranked (casual) matches to establish your skill level. This is known as your “Skill Rating,” or SR. Once you have reached the required SR for a given division, you will be eligible to participate in ranked matches in that division.
The higher the division, the higher the SR required. For example, to participate in ranked matches in Division 1 (the highest division), you will need a very high SR. On the other hand, to participate in ranked matches in Division 10 (the lowest division), you will need a much lower SR.
Keep in mind that the SR required to enter each division can vary from season to season, as the game adjusts the requirements based on the overall skill level of the player base.
If you are new to Rocket League or are struggling to improve your skills, it may take some time and practice before you are ready for ranked play. In the meantime, you can still enjoy the game by playing unranked matches and working on your skills.