Why Jockeys Are Weighed Before and After a Race

Purpose of weighing: the assigned weight is part of the race conditions. Pre-race and post-race checks help officials confirm that a runner carried the required weight, subject to the jurisdiction’s rules and permitted allowances.

Before a jockey comes out to ride a horse in a racing event there are many things happening behind the scenes. One of these is a weigh-in. Each jockey must have their weight recorded before the beginning of the race day. This daily ritual is actually a very important part of horse racing, and it also has an impact on how bettors handicap races. Have you ever wondered why they weigh jockeys before the race? Here’s the answer.

The Reason for Weighing Jockeys

Jockeys must have their weight checked for a very simple reason: the rules of racing require that bettors know how much weight each horse is carrying during a race. Some believe that weight plays a significant role in how well a horse will perform, especially over a long distance.

When a horse is entered in a race, the animal is assigned a weight to carry. The assigned amount comes from the race conditions and the applicable jurisdiction’s rules. It is not one universal Jockey Club assignment shared by every track and race. The amount of weight carried depends upon the type of race the horse is entered in.

In claiming races all horses typically are assigned the same weight. There are exceptions when a horse might be given a weight reduction compared to its competitors because of a specific circumstance. For example, a filly running against males is permitted a small weight allowance. A horse ridden by an apprentice jockey is also given a reduced weight. This is done to promote fair competition.

In an allowance race there are weight allowances given for meeting certain conditions. A horse might be allowed two pounds off for not having won a race in the current year. Stakes can use handicap, weight-for-age or other published conditions. Read the particular stakes conditions and any allowances rather than assuming every runner carries the same amount.

A handicap race is one in which each horse in the race has been assigned a weight by the track handicapper. This is also done to try and put the horses in the event on a level playing field. There have been cases where legendary horses carried as much as ten pounds more than their rivals.

Once the weights have been assigned, they are published in the past performances that bettors use to handicap a race. If something happens that causes the weight to change, the public must be made aware of this change before the race. Changes can involve declared overweight, permitted allowances, rider changes or corrections governed by the local rules. A lighter rider does not automatically reduce the published weight: required ballast and equipment can bring the carried amount up to the assignment. This is why some horses will be announced as “two pounds over” by the track announcer before a race begins.

A jockey is weighed before the races begin so that his or her weight can be recorded for the racing officials. This is the only way that officials can determine if a horse is carrying more weight than it was intended to carry.

The Clerk of Scales Weighs the Jockeys

Inside the jockey’s room there is a racing official with the title Clerk of Scales. It is this person’s responsibility to make sure that all jockeys weigh and have their weight recorded before the races begin. The Clerk of Scales is technically supposed to visually verify the weight on the scales when the jockey weighs to prevent any cheating. California’s Rule 1559 expressly requires the clerk to verify the weight at weighing out and weighing in and to report discrepancies to the stewards. That stated duty should not be replaced by an unsupported claim that officials on smaller circuits routinely accept a rider’s word.

Many jockey’s rooms have the scales placed directly in front of the Clerk of Scales’ desk. This makes it possible for the official to verify that the weights are correct. When all jockeys have weighed, the Clerk of Scales will relay the information to the track stewards. These officials will then notify the track announcer of all overweight amounts on the race card.

What Happens When a Jockey is Overweight?

You might think that a jockey that is overweight will not be allowed to ride in the races that day. This is not the case. Whether the rider can proceed depends on the permitted overweight, declarations and stewards’ requirements in that jurisdiction. Public announcement alone is not a universal permission to ride at any excess weight. Jockeys do not like being overweight because it can get them in trouble with trainers. Trainers do not like the idea of their horses carrying more weight than expected.

A trainer could choose to remove the jockey from the horse and use another rider that meets the required weight. Do not assume that replacement is exceptionally rare or infer the trainer’s reason from the booking alone. Availability, the permitted overweight and the race rules all need to be considered. Also, the horse has generally been training with the jockey in question. But, trainers may be hesitant to let a jockey ride the horse for them again in another race.

Do Jockeys Weigh After a Race?

Post-race weighing takes place at the designated scales under the local procedure; the scale need not be in the winner’s circle at every track. As soon as a race is complete, a jockey must step on the scale to have their weight verified once again. What is the reason for this second weigh-in?

Like any athlete, a jockey can actually lose weight during competition. Sometimes the jockey will actually be lighter at the end of a race than they were at the beginning. This can affect the weight at which they are supposed to ride other races on the card.

Weight in Racing: Why It Matters for Handicapping

The weighing of jockeys before and after races is not merely a regulatory formality — it is part of a comprehensive weight management system that has direct implications for how races should be handicapped. In weight-for-age races, where all horses carry standardised weights based on age, the jockey’s weight relative to the horse’s assigned weight determines how much dead weight (lead weights in the saddle cloth) must be added to reach the required total. In handicap races, the assigned weight reflects the handicapper’s assessment of each horse’s ability relative to the field, making weight management a genuine competitive variable.

A light jockey does not by itself make a horse carry less than its assigned weight. The rider and included equipment, with ballast where needed, must meet the required total under the rules. Compare the official carried weight, not the rider’s body weight in isolation. Conversely, horses that are carrying several pounds more than their usual weight because a preferred jockey is too heavy for the assignment may be slightly disadvantaged by the additional burden, even when the handicapper intended the weight assignment to represent equal competitive opportunity. Tracking which horses regularly benefit from significant weight relief through jockey choice, and which are carrying more than their connections would prefer, adds a nuanced dimension to weight-based handicapping that raw assigned weight figures do not capture on their own. For more on weight in racing, our article on weights in horse racing covers the topic comprehensively. And the CHRB rulebook provides a jurisdiction-specific reference, including Rules 1559, 1682–1686 and 1701–1703.

A Jockey-Room Anecdote: Separate Story from Rule

The following Lucy Burch story is a recollection presented in the earlier article, rather than a verified official weighing record. Its private dialogue and exact sequence should not be used to establish the procedure required at a race meeting.

The late Lucy Burch was known for being a firebrand on the racetrack. A fierce competitor with a vivacious personality, Burch lost her life in a car accident in 2007.

Lucy Burch was known to hate weighing herself. She frequently struggled with weight issues and was often three of four pounds overweight. This became a source of great frustration for her jockey agent. One morning during training hours he demanded that Burch accompany him to the female jockey’s room and weigh. Burch was not amused.

The agent informed Burch that he would no longer represent her if she refused to weigh. The jockey stormed into the jockeys room with only her agent in tow. Once the door was closed, Burch removed every stitch of clothing before stepping on the scale. She turned to the flustered agent with her hands on hips and said, “What time do you want me to weigh tomorrow?”

The agent never asked her to weigh again.

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What the Scale Includes

The measured equipment can include the jockey, saddle and specified gear, while some items may be excluded under local rules. Apprentice allowances and other conditions can change the assigned amount. Consult the official race card and rules for the meeting.

What Bettors Should Check

Use the published weight as one factor alongside distance, pace, class, fitness and surface. A small difference is not an automatic betting signal. Post-race objections or disqualifications are governed by the official rules and stewards’ decision.