By Nico Kritsiotis. Published November 2026.
All of us, some time or the other, have watched our weight. It, then, comes at no surprise that weight may be regarded as one of the most looked at or seriously regarded metrics in horse racing to find winners. There are a couple of areas where weight can be studied or analysed, and if you want to sharpen your race-day picks, both of them matter.
The Horse’s Own Weight on Race Day
The first area is the actual horse’s weight when it is due to race. Horses are weighed when they arrive at the track on race day and the information is then disseminated on to the racing public. Horses, like humans, are considered to be creatures of habit, and as a result, tend to do best when they are at their ideal weight.
Punters are advised to look for what weight a horse does best at and what its ideal weight is. Once you know a horse’s winning weight range, every subsequent race-day weight becomes a data point you can read.
What the Race-Day Weight Is Telling You
- Above ideal weight. The horse might not be completely fit, or it has had a rest and is not race fit. Carrying extra condition slows a horse down over any trip.
- At ideal weight. The horse has been prepared properly. This is the weight you want to see when you are putting it on your card.
- Below ideal weight. The trainer may have overworked the horse at home. The trainer needs to ease up on the training regime, and until the horse rebuilds, it is unlikely to perform at its best.
The Weight the Horse Carries on Its Back
But, for me, the weight that a horse carries on his or her back is vitally important to pick a winner. A horse is allocated a weight in the racecard according to the conditions of the race, and these are published against each horse’s name. In handicap races, horses are allocated weights according to their merit ratings, where each merit rating point equals half a kilogram.
So if two horses are rated 10 merit points apart, the better-rated one carries 5 kilograms more on race day. That is a meaningful difference over any distance and across any track.
What Makes Up That Carried Weight
The weight that a horse is allotted is made up of several things:
- The jockey’s body weight while clothed
- The weight of the saddle
- The numbercloth
- The bridle
- The safety vest
If the total of this weight is below that which the racecard represents, then the difference is made up with pieces of lead which are inserted into pockets underneath the saddle. These weights are strictly monitored on a magnetic scale by the clerk of scales, whose duty it is to weigh jockeys when they go out to race and when they come back in after a race.
It is these weights that, believe it or not, affect the outcome of a race and can make the difference in the ultimate result.
How to Use Weight When Reading Form Lines
This is where studying weight becomes a punter’s edge. You can study form lines where horses have previously run together and assess what the weight difference is between then and now. From there, you can determine who should finish in front of whom on the day.
- Find a previous race where today’s runners met. Pull up a form line showing when two or more of today’s horses raced head-to-head before.
- Note the weights carried that day. Record what each horse carried, and the result.
- Compare to today’s allocated weights. Check whether the merit rating gap has widened or narrowed, and work out the weight swing.
- Adjust the previous result for today’s conditions. If a horse now carries 2 kilograms less than last time, that is roughly a length over 1,200 metres and more over longer trips. If it carries 2 kilograms more, the opposite applies.
- Weight this against the other variables. Weight alone won’t win you a race, but combined with form, trip, going, and the jockey-trainer combination, it sharpens your edge.
Why This Is Worth Studying
It all boils down to the science of picking a winner, and weight is a very important part of studying a race in order to pick a winner. Remember not to gloss over or ignore weights against horses’ names, as this could be detrimental to your success in punting. I place a heavy emphasis on this variable, and I implore you to do so too.
Where to Watch and Bet on SA Racing
For more form reading tools and race preparation, take a look at our horse racing odds and forms guide, the RaceLab Insights explainer, and the track biases guide for Greyville and the Vaal.
If you missed the previous column, read The Inside Scoop Column 2 on jockey-trainer combinations.
You can catch every race live via 10bet’s horse racing live-streaming service (Vaal, Turffontein, Fairview and Greyville all covered) and place your bets on the 10bet sports betting platform.
Have a great racing week folks.
Nico Kritsiotis writes The Inside Scoop column for the 10bet blog.
18+. Please gamble responsibly. Winners know when to stop. National Responsible Gambling Programme helpline: 0800 006 008. Bet only what you can afford to lose. 10bet is a licensed South African bookmaker (Edcobrite Pty Ltd), regulated by the Mpumalanga Economic Regulator.
