What is the main criterion for categorizing wrestlers into weight classes in high school wrestling?

The main criterion for categorizing wrestlers into weight classes in high school wrestling is weight during weigh-ins. This practice ensures that wrestlers compete against others of similar body weight, promoting fair competition and reducing the risk of injury. By weighing in before a match, wrestlers are assigned to specific weight classes that allow them to compete with opponents of comparable size, which is crucial for maintaining balance in the competition.

While height, age, and experience are important factors in wrestling, they are not used as the primary basis for weight class classification. Height does not accurately reflect a wrestler’s weight or overall mass, which is essential for determining safety and fairness in matches. Age could influence a wrestler's physical development but is not a factor for weight classes. Similarly, experience is relevant for skill level but does not correspond to the physical characteristics that weight classes aim to address. Thus, weight during weigh-ins is the standard used to ensure an equitable competitive environment.