When must a jockey report to the clerk of scales for weighing-out in relation to the first race?

A jockey must report to the clerk of scales for weighing-out no more than 30 minutes before post time to ensure that they meet the weight requirements for their assigned horse. This timeframe allows the jockey sufficient opportunity to prepare for the race while ensuring that any last-minute adjustments to gear or weight can be made. Weight compliance is crucial in maintaining fair competition and safety standards in horse racing.

The specific timing is also relevant to the race officials' ability to confirm the jockey's readiness and compliance with regulations, making it necessary for the jockey to report within this limit. Weighing-out usually involves an official check of both the jockey and the equipment they will carry during the race, and the stipulated timeframe allows for smooth transitions between races and adequate preparation.