What happens if a jockey is not the same weight after the race as they were before?
Should a rider weigh in more than one pound under the weight at which he weighed out, the Clerk of the Scales will lodge an objection with the Stewards, who will automatically hold an enquiry. The horse involved will be disqualified and the rider penalised.
If a rider weighs in two pounds or more over the weight that he weighed out, the Clerk of the Scales will report the rider to the Stewards and may be suspended. The one pound under and two pound over tolerances reflect the weight loss or gain a rider may incur dependant on weather conditions.