While I appreciate your concern for a more standardized approach to categorizing racers, I must point out that self-reported data and subjective evaluations by officials are not entirely arbitrary. They take into account a rider's experience, past performances, and physical condition, which are all crucial factors in determining their category.
However, I do agree that there is room for improvement in this area. One potential solution could be to implement a more rigorous screening process, including a series of timed trials or fitness tests to objectively assess a rider's abilities. This would provide a more accurate and transparent way of categorizing racers and prevent sandbagging.
Another option could be to adopt a more data-driven approach, using metrics such as power-to-weight ratio, previous race results, or training data to determine a rider's category. This would require riders to share more information about their training and performance, but it would provide a more objective and standardized way of categorizing them.
Ultimately, the key to promoting a more level playing field in competitive cycling is to encourage transparency, accountability, and fairness. By implementing more rigorous screening processes, adopting data-driven approaches, and promoting a culture of sportsmanship and respect, we can help ensure that riders are competing against others of similar abilities and that the sport is fair and accessible to all.