Not taking part in the sports meeting is usually not considered a big mistake. Larger punishment refers to the punishment that violates some regulations or systems of the school. Sports meeting is a school activity, and participation will not directly lead to serious problems. However, each school may have different requirements for students to participate in campus activities. If the school stipulates that it is necessary to participate in the sports meeting, then not participating may lead to other consequences, such as fines or not being able to participate in other activities. Therefore, the specific situation needs to be judged by referring to the regulations of your school.