In the context of dismissing sports achievements, which fallacy asserts that not all wins are valid based on personal definitions of sport?

Victory by Definition is the correct choice because it refers to the fallacy where one dismisses the validity of particular sports achievements based on a subjective or personal definition of what constitutes a "true" win or sport. This fallacy suggests that if a person does not recognize a specific victory as legitimate, it can be invalidated according to their personal criteria, rather than acknowledged through a more general understanding of sportsmanship or competition.

In this context, the fallacy implies a form of circular reasoning, where the conclusion (that certain achievements are not valid) is built on an established definition that may not be universally accepted. This can lead to arbitrary dismissals of accomplishments based solely on one's own perspective, rather than a fair analysis of the achievements in question.

This contrasts with the other options, which represent different types of logical fallacies that do not pertain directly to the categorization and validation of sports achievements. Thus, recognizing Victory by Definition helps in understanding how subjective perspectives can influence the interpretation of success in sports.