• Skip to content
  • Skip to primary sidebar

RulesofSport.com

  • Home
  • Betting Sites
    • Football
    • Horse Racing
    • Greyhound Racing
    • Tennis
    • Golf
  • New Sites
  • Offers
  • Articles

What is the Official Rating in Horse Racing and Why Does it Matter?

Horses Grouped TogetherWhen you look at a racehorse close up, there’s not a great deal to be discerned about their quality as a chaser or a sprinter.

Okay, so you can look at their build, the quality of their coat and their general demeanour in the paddock to get some clues, but appearances can be deceptive – Michael O’Leary once described two-time Grand National champion and multiple-time Cheltenham Festival winner Tiger Roll as a ‘little rat of a thing’.

To help differentiate between horses and give a general idea of their performance level, a ratings system has been created that ensures handicap races are run fairly and that renewals with specific entry requirements are adhered to.

So, when you see ‘OR’ on a racecard, that stands for Official Rating… and here’s everything you need to about it.

What Is the Official Rating?

Official Rating

The British Horseracing Authority (BHA) is in charge of overseeing that all races that take place under their umbrella are fair and competitive.

To help with that mission, they implement a ratings system for both Flat and National Hunt horses that, for the most part, should see them compete on an equal footing with their opposition.

A horse is designated an official rating on the basis of its past performances, and while the actual calculation is a little more complex, as a general rule of thumb if a horse wins their rating increases and if they run poorly on a number of occasions their rating will decrease.

A racehorse in the UK will go unrated until they have won or placed inside the top-six in at least three outings. These ratings are then updated on a weekly basis, so that an accurate picture is painted.

Just a couple of points of order. Flat horses are rated between 0-140, while in National Hunt racing that increases to 0-170. And before you rush out and place your bets on the horse with the highest OR, remember this isn’t always an accurate measure – some runners have a rating that’s too high relative to their recent form, with an inflated number in place due to the quality of their past performances.

Also, some horses are switched between hurdling and chasing – so their rating can be inaccurate, others may be being tested over a different distance or going for the first time, and so on. Research remains the key weapon in the arsenal of a horse racing punter.

How Is the Official Rating Used?

Horse Race Entry RequirementsThere’s a couple of ways in which the official rating system is used.

Some races have very specific entry requirements to determine who is and who isn’t eligible to run in it. Some renewals only allow for runners in a specific rating bracket to compete, and that is particularly the case in top-tier Class 1 races – on the Flat, that is generally an OR of 96+.

There’s another use for the official ratings. Handicappers will consider the OR when determining the weights for handicap renewals – so, a horse rated 85 will typically carry five pounds more than one rated 80. We cover this in more detail below.

How are Official Ratings Calculated?

Handicappers will consider many different variables when it comes to calculating official ratings.

They want to see horses that are running well against opposition of a similar or higher rating – generally, that will see their own OR increase. The opposite is true for underperforming runners failing to compete against similarly-rated horses.

The analysts will also keep a close eye on horses running ‘out of handicap’. Those that entered in races well above their current OR will be forced to carry a weight the same as higher-rated horses, but if they show form in this company then their rating will be impacted positively.

How are Handicaps Decided In Horse Racing?

Horse Handicap Weights

The handicapper’s role is to create a utopian situation where all of the horses in a race cross the finishing line at the same time.

So they ‘penalise’ better horses by making them carry a heavier weight than their lower rated counterparts, with the aim of creating a level playing field.

Of course, it very rarely works out like that in reality, but one of the uses of the official rating is to give the handicapper a guide for their weight calculations.

As well as the OR, the handicapper will also consider previous form at the host racecourse, the distance being run and the going, speed patterns, relative weight and even any draw bias in prior runs to try and create an accurate picture of how a race will play out.

Primary Sidebar

Bookmaker Reviews

  • 10bet
  • Betfair
  • Betfred
  • BetVictor
  • Betway
  • ComeOn
  • Coral
  • Ladbrokes

Banking Guides

  • PayPal Betting Sites

Football

  • Football Betting Sites
  • Football Bets
  • Football Betting Rules
  • Abandoned Matches
  • Football Betting Strategy
  • Expected Goals
  • What are Booking Points?
  • Own Goals
  • Regular Time, Injury Time, & Extra Time
  • Draw No Bet & Double Chance
  • What Does Over/Under .5 Goals Mean?
  • Both Teams to Score Betting
  • Shots on Target
  • Home Advantage
  • What Does Win Both Halves Mean?
  • Aggregate Wins and Your Bet
  • Scoring From Throw Ins, Corners, Goal Kicks
  • Goal Difference
  • Offside Betting
  • Football Acronyms
  • Asian Goal Line
  • Football Markets with the Lowest Margin
  • Player Doesn't Play
  • Bet Not to Score
  • Bet on Cards in Football
  • First Goalscorer Each Way
  • What is VAR?
  • Betting on Goalkeeper Saves
  • Sack Race and Next Manager
  • Multi Goal Betting
  • What is Team Performance?
  • Betting on Tackles
  • Correct Score Betting in Football
  • Reacting to Game State When In-Play Betting
  • Betting on Late Goals

Horse Racing

  • Horse Racing Betting Sites
  • Horse Racing Bets
  • Horse Racing Betting Rules
  • Grades, Racecards & Form
  • Handicapping
  • Steamers and Drifters
  • Best Odds Guaranteed and Starting Price
  • Horse Racing Strategy
  • Forecasts, Reverse Forecasts & Exactas
  • Tricasts, Combinations, and Trifecta Bets
  • What is Draw Bias?
  • Obstacles in Racing: Fences & Hurdles
  • Headgear in Horse Racing
  • All Weather Racing
  • Back to Lay
  • Amateur Jockeys
  • Places Betting
  • Fell, Pulled Up, Brought Down & Unseated Rider
  • What Does Refused Mean?
  • Horse Breeds Used for Racing
  • Forecast vs Exacta
  • Tricast vs Trifecta
  • Official Ratings
  • No Horses Declared
  • Final Declarations
  • Non Runners
  • Racing Acronyms
  • Non-Runners in a Forecast or Tricast
  • Bet on Long Shot or Favourite?
  • Lowest Margin Horse Racing Markets
  • Betting on Horse Racing In Play
  • 80/20 Horse Racing Betting Strategy
  • How to Bet on The Tote’s World Pool
  • How do Non-Runner Money Back Promotions Work?
  • What is Going and How Important is it?
  • Do Horses Run Better After a Wind Operation?
  • What are the Different Types of Horse Race?
  • Bets on Horse Racing: Online vs Betting Ring
  • Can Horse Pedigree Predict the Outcome of a Race?
  • What is Pattern Form in Horse Racing?
  • How Reliable are Handicap Ratings in Racing?
  • What are Sectional Times?
  • What Happens to My Bet If There’s a False Start?
  • What is Point to Point Racing?
  • Ca a Jockey Re-Mount After a Fall?

Greyhound Racing

  • Greyhound Racing Betting Sites
  • Greyhound Bets
  • How Many Greyhound Tracks Are There in the UK?
  • The Greyhound Derby
  • Trap Challenge Betting Rules
  • Greyhound Betting Rules
  • Greyhound Hares

Tennis

  • Tennis Betting Sites
  • Retirement Rules for Tennis Betting
  • Tennis Disqualification Rules
  • Tennis Bets
  • Tennis Handicap Betting
  • Total Games
  • Match and Serve Dominance
  • Set Betting
  • Tennis Walkover Betting Rules

Golf

  • Golf Betting Sites
  • Improve Your Golf Betting
  • Golf Bets & Bet Types
  • 2 & 3 Ball Betting
  • Who Will Make the Cut Betting
  • Each Way Golf Betting
  • First Round Golf Betting Markets
  • Top Finish Bets and Golf Accumulator Betting

Articles

  • Betting Articles
  • Betting Exchanges
  • Ante Post Betting
  • Cash Out
  • In Play Betting
  • Accumulator Betting
  • Handicap Betting
  • Full Cover Bets
  • Betting Odds Explained
  • Request A Bet
  • Betting Strategy
  • Pools Betting
  • Which Betting Site Has the Best Odds?
  • What Happens if a Bookie Goes Bust?
  • High Street Betting Shops
  • Dormant Betting Accounts
  • Gambling License Suspension
  • Each Way Accas
  • What Does 'Evens' Mean?
  • Betting Limits, Payout Limits, Account Limits
  • Palpable Error
  • Void Bets
  • How Long Does it Take for a Bet to Settle?
  • Bet Referred to Traders
  • Calculating a Payout
  • Working Out the Payout Of Full Cover Bet
  • Suspended Betting
  • Implied Probability
  • Converting Fractional & Decimal Odds
  • Combination Forecast
  • Combination Tricast
  • Place Insurance
  • Official result
  • Match Fixing
  • Can you Edit a Bet?
  • Proof of Income
  • Odds On Meaning
  • Calculating the Margin on a Bet
  • Tote v Fixed Odds: Best Value
  • Both Teams to Win
  • Each Way Betting: Is it Worth it?
  • Accumulators and Bookie Margin
  • What is Closing Line Value?
  • Hedging Your Bets
  • Bet Boosts
  • Best Odds Guaranteed vs Price Promise
  • How are Dead Heats Settled?
  • Betting Without
  • Betting on More than One Horse (Dutching)
  • What is a Nap in Betting?
  • Wisdom of the Crowd vs Fading the Public
  • Tips to Improve Bet Builder Betting

Betting Site Questions

  • Betfair: How to Change Between Decimal and Fractional Odds
  • Ladbrokes: How to Change to Decimal Odds

Copyright © 2026 · Top10BettingSites.co.uk · 18+ Please Gamble Responsibly (GambleAware.org & Gamstop.co.uk)