Betting Without Explained: How W/O Markets Work and When to Use Them

Jack Stanley
| published on: 06.03.26
9 Minutes reading time

Betting without — often written as betting W/O — is a market that removes a specified runner from the contest and pays out based on who wins among the remaining field. The most common version is betting without the favourite, but bookmakers also offer betting without specific named runners in major races and tournaments.

If the excluded runner wins the actual race, it has no bearing on your bet. Your selection only needs to beat the rest of the field — the excluded runner is treated as if they never entered.

It sounds straightforward, but there are settlement rules worth understanding before placing — particularly around what happens if the excluded runner does not actually participate in the race, and how odds in the W/O market relate to the main market.


How Betting Without Works

The Core Mechanic

A betting without market takes the full field and removes one competitor — usually the favourite — for betting purposes. You then back whichever remaining runner you believe will finish first among those still in the market.

The excluded runner winning does not make your bet a loser. It simply means your market is settled as if the excluded runner’s result does not exist. Only the placings of the non-excluded runners determine settlement.

The excluded runner losing does not help your bet either. If the favourite finishes second and your selection finishes third, your bet loses — because Pendleton (second) beat your selection (third) in the remaining field.

Worked Example: Horse Racing

Race result (full field):

  1. Epona — 13/8 fav (excluded from W/O market)
  2. Pendleton — 2/1
  3. Sarvi — 4/1
  4. Bay Watch — 4/1

Betting without the favourite market settlement:

Epona’s result is disregarded. The remaining field is settled in order:

  1. Pendleton
  2. Sarvi
  3. Bay Watch

If you backed Pendleton in the betting without the favourite market — your bet wins. Pendleton won among the non-excluded runners.

If you backed Sarvi — your bet loses. Pendleton beat Sarvi in the remaining field.

If you backed Bay Watch — your bet loses. Both Pendleton and Sarvi finished ahead in the remaining field.


Odds in Betting Without Markets

Because one runner — typically the shortest-priced runner in the field — is removed, all remaining runners have a statistically higher probability of winning among themselves. This is reflected in shorter odds than the main market for the same runners.

Example comparison:

Runner Main Market Odds Betting Without Favourite Odds
Epona (fav) 13/8 Excluded
Pendleton 2/1 6/4
Sarvi 4/1 5/2
Bay Watch 4/1 5/2
Others Various Shorter

Pendleton at 2/1 in the main market becomes 6/4 in the W/O market — shorter odds because the probability of winning among the remaining field is higher than the probability of winning the full race. The bookmaker’s margin applies to the W/O market independently, so always check whether the implied probability in the W/O market represents genuine value relative to the main market before placing.

How to assess value in a W/O market: If Pendleton’s true probability of beating the remaining field (without the favourite) is 45%, and the W/O odds of 6/4 imply approximately 40%, the price offers some value. If the W/O odds implied 48%, the price is overpriced. This is the same value assessment required for any market.


Types of Betting Without Markets

Betting Without the Favourite

The most common W/O market. The bookmaker excludes the current market favourite — typically the shortest-priced runner at the time the market is opened. This is the version most frequently offered for major horse racing events.

Important: The “favourite” is usually defined at the time the market is opened, not at the time of the race. If the favourite changes between when the market opens and when the race runs — due to market moves, late money, or a change in conditions — the runner excluded from the W/O market may not be the actual favourite at the off. Check which runner is specified as excluded in your bet confirmation.

Betting Without a Named Runner

For high-profile races — particularly the Grand National, Cheltenham Festival championship races, and major flat races — bookmakers often offer markets that exclude a specific named horse rather than “the favourite” generically.

Example: “2026 Grand National — Betting Without [Horse Name]”

This variant is useful when there is one dominant market leader whose participation significantly compresses the odds of backing any other runner in the main market. Removing them creates a competitive secondary market among the remaining field.

Betting Without the Top Two (or Top Three)

Some bookmakers offer markets excluding the two or three shortest-priced runners. This creates an even more open market among the remaining field and is typically offered when two or three runners dominate the main market to the exclusion of realistic odds about the rest.

Golf: Betting Without

Golf betting without markets are widely offered for major tournaments — The Masters, The Open Championship, the US Open, and the PGA Championship. A typical offering excludes the world number one or the dominant pre-tournament favourite.

Settlement follows the same logic as horse racing: the excluded player’s tournament result is disregarded, and the bet is settled on who wins the tournament among the remaining field.

Golf-specific consideration: If the excluded player withdraws from the tournament mid-competition (due to injury or other reasons), the W/O market is typically settled as a void — your stake is returned — rather than having the market continue to a conclusion. This is because the market was priced on the assumption the excluded player would compete. Check your bookmaker’s specific void rules for golf W/O markets before placing on major tournaments.

Football: Betting Without

Betting without markets are less common in football but do appear for major competitions — World Cup group stage winners betting without the top seed, or Champions League group winners betting without the named favourite. Settlement follows the same logic.


What Happens If the Excluded Runner Does Not Participate?

This is the most important settlement question in betting without markets and the one bettors most commonly overlook.

Scenario: You place a betting without the favourite market bet. The favourite is subsequently withdrawn as a non-runner before the race.

The market has now effectively become the standard race — the runner you were “betting without” is no longer in the race anyway. Bookmakers handle this in one of two ways:

Approach 1 (most common): Bet is void, stake returned. The rationale: the bet was priced on the specific assumption that the excluded runner would compete. Without them in the race, the market does not reflect the conditions under which it was priced. Voiding the bet returns you to the main market to re-assess.

Approach 2: Bet stands, settled on the main race result. Some bookmakers allow the bet to stand as effectively a standard race bet, with your selection needing to win the actual race. This is less common.

Always check your bookmaker’s rules before placing a W/O bet, particularly for events where late withdrawals are common — National Hunt racing in changeable going conditions, golf tournaments where players may withdraw due to injury, or large handicap fields where non-runners are frequent.


Betting Without vs. Alternative Markets

Understanding how betting without compares to other markets helps clarify when it is genuinely the right tool.

Market What It Does Best Used When
Main race market Full field, including favourite You want to back any runner including the favourite
Betting without favourite Removes favourite, shorter odds on the rest You believe a non-favourite will win but the favourite’s presence compresses standard odds
Each way betting Covers win and place positions You want a return from a placed runner at longer odds
Place only market Bets on placing, not winning You want returns from a top-finish without requiring a win
Forecast/Exacta Predicts first and second in order You have a view on which two runners finish at the top

Betting without is most useful when:

  • The favourite is very short-priced (evens or shorter) and dominates the main market, compressing odds on the rest of the field to levels that do not reflect their true relative merits
  • You have a specific opinion that a second or third favourite represents the best value in the remaining field
  • A major race has one dominant runner whose participation you believe is priced efficiently in the main market, but whose removal creates mispricing among the others

Betting without is least useful when:

  • The favourite is at a price (say, 5/1 or longer) that does not significantly distort the main market odds on other runners — the W/O market will offer little odds improvement and the bookmaker margin still applies
  • There are multiple closely priced runners, so no single runner’s removal materially changes the market

Betting Without in Each Way Markets

Betting without markets can usually be placed each way, with place terms based on the reduced field (after removing the excluded runner). The number of places paid may differ from the main each way market because the field size is effectively one smaller.

Check the specific place terms before placing. A race with 12 runners paying three places in the main market may have the same or reduced place terms in the W/O market depending on how the bookmaker constructs it. This is particularly relevant for large-field handicaps where place terms are already close to the field size threshold.


Practical Tips for Betting Without Markets

Confirm which runner is excluded and how they are defined. “The favourite” can mean the market favourite at opening or at the time of the race. Named runner markets are clearer — always double-check your bet confirmation.

Check non-runner void rules before placing. If the excluded runner is withdrawn, you need to know whether your stake is returned or the bet stands as a standard market bet. This varies by bookmaker and sometimes by competition.

Compare the W/O odds to implied probability. Convert the W/O odds to an implied probability and compare to your own assessment of the runner’s chance of beating the remaining field. The W/O market is not automatically better value than backing the same runner in the main market at longer odds.

Use W/O markets for major races with dominant favourites. The Grand National, Cheltenham Gold Cup, The Open Championship — these are the events where one runner (or player) typically compresses the main market significantly. The W/O market’s value proposition is strongest here.


Frequently Asked Questions

What does betting W/O mean?

Betting W/O stands for “betting without” — a market where a specified runner (usually the favourite) is excluded, and bets are settled on who wins among the remaining field. If your selection wins among the non-excluded runners, your bet wins regardless of where the excluded runner finished.

Does the excluded runner’s result affect my bet?

No. The excluded runner’s result — whether they win, place, or finish last — has no bearing on your betting without bet. Only the results of the non-excluded runners determine settlement.

What happens if the excluded favourite wins the race?

Your bet is settled on the placings of the non-excluded runners. If the excluded favourite wins the race, it is disregarded for settlement. Whoever finishes first among the remaining runners is treated as the winner of your W/O market.

What happens if the excluded runner is a non-runner?

Most bookmakers void the bet and return your stake if the excluded runner does not participate in the race. This is because the market was priced assuming the excluded runner would compete. Some bookmakers allow the bet to stand — check your operator’s specific rules before placing.

Are betting without markets available each way?

Yes, at most bookmakers that offer W/O markets. Place terms in the W/O market are based on the reduced field size and may differ from the main each way terms. Always check the specific place terms before placing.

Is betting without available for sports other than horse racing?

Yes. Golf is the most common other sport — major tournament W/O markets excluding the pre-tournament favourite are widely offered. Football and other multi-competitor sports occasionally offer W/O markets for specific competitions.


Sources: UK Gambling Commission; Tattersalls Rules on Betting; independent bookmaker settlement documentation. All external links verified as of March 2026.

Jack Stanley
Jack Stanley Jack Stanley is the Editor-in-Chief at online-betting.org, where he oversees the site’s editorial direction, content standards and publishing quality across sports betting and online casino coverage. With a strong focus on clarity, accuracy and player-first content, Jack ensures that every guide, review and comparison published on the platform is informative, trustworthy and relevant to UK readers.