What is Best Odds Guaranteed (BOG) in Horse Racing?

Best Odds Guaranteed, commonly abbreviated as BOG, is a betting promotion offered by bookmakers that ensures you receive the best possible price on your winning bets. Specifically, when you place a bet on a qualifying horse or greyhound race, BOG guarantees that your payout will be calculated using whichever is higher: the odds you accepted when you placed the bet, or the official starting price (SP) at the time the race begins.

This seemingly simple concept represents a fundamental shift in how bookmakers compete for customer loyalty. Rather than offering temporary sign-up bonuses or deposit matches, BOG provides a permanent, tangible advantage to bettors on every qualifying race. It eliminates the frustration of watching odds drift upwards after you've placed your bet, only to be locked into the lower price you originally accepted.

The Basic Definition and Core Principle

At its heart, BOG works on a straightforward principle: comparison and selection. When your bet wins, the bookmaker compares two prices—your backed price and the starting price—and pays you at whichever is higher. This means you can never lose out through odds movement. If the odds lengthen (drift out) in your favour, you benefit. If they shorten (come in), you're protected by your original price.

The genius of BOG lies in its psychological appeal. For bettors, it removes the anxiety of early betting. You don't have to wait until the last moment before a race to place your bet, hoping the odds won't contract. You can place your bet hours or even days in advance (depending on the bookmaker's terms), knowing that if the price improves, you'll automatically benefit.

Why Bookmakers Created BOG

The introduction of Best Odds Guaranteed wasn't a charitable gesture—it was a calculated business decision born from intense competition in the online betting market. When online bookmakers first emerged in the late 1990s and early 2000s, they needed ways to differentiate themselves from traditional high-street betting shops and from each other.

Bookmakers realized that offering BOG served multiple strategic purposes. First, it attracted bettors who wanted better value without requiring them to employ complex matched betting strategies. Second, it encouraged early betting, which allowed bookmakers to manage their odds and liability more effectively. Third, it created a sense of fairness and customer care that built loyalty in an increasingly competitive market.

Paradoxically, BOG also benefits bookmakers in the long run. While it seems generous to offer price improvements, the bookmakers who offer it most generously (like Bet365) often attract more volume, which increases their overall profitability despite the occasional large payouts. Additionally, most bookmakers offering BOG set time restrictions or bet type limitations that reduce their exposure to extreme scenarios.

How Does Best Odds Guaranteed Work in Practice?

Understanding BOG requires understanding the mechanics of odds comparison and payout calculation. The process is straightforward, but the implications can significantly affect your returns.

The Step-by-Step Mechanism

When you place a bet on a BOG race, here's exactly what happens:

1. You place the bet and accept the current odds offered by the bookmaker (your "backed price").
2. The race approaches and odds may move in either direction—they might drift out (lengthen) or contract (shorten).
3. The race starts and the official starting price (SP) is established.
4. Your bet settles (if it wins). The bookmaker compares your backed price with the SP.
5. You're paid at whichever is higher, ensuring you receive the best possible return.

The critical element is that this comparison only matters if your bet wins. If your selection loses, BOG provides no benefit—you lose your stake regardless. This is why understanding BOG is not about guaranteeing profits, but about maximizing returns on your winners.

The backed price is the odds you see and accept when placing your bet. This might be 5/1 on a horse that catches your eye at 10 AM on race day. The starting price is determined by the official betting exchanges and bookmakers just before the race begins, perhaps at 7/1 or 4/1. BOG ensures you benefit from whichever scenario occurs.

Detailed Calculation Examples

Let's walk through several real-world scenarios to illustrate how BOG payouts are calculated. These examples use different stake amounts and odds movements to show the full range of outcomes.

Scenario 1: Odds Drift (Your Best-Case Scenario)

You back a horse at 5/1 for £10. You're pleased with the price and place the bet at 10 AM. As race time approaches, the horse drifts in the market to 8/1. Your bet wins. With BOG, you're paid at 8/1, giving you £90 return (£10 stake × 9.0 odds). Without BOG, you'd only receive £60 (£10 stake × 6.0 odds). Your BOG benefit is £30.

Scenario 2: Odds Shorten (Bookmaker Protection)

You back a horse at 8/1 for £10. The horse is heavily backed by other punters, and the odds contract to 4/1 by race time. Your horse wins. With BOG, you're still paid at 8/1, giving you £90 return. Without BOG, you'd receive only £50 (£10 stake × 5.0 odds). Your BOG benefit is £40. This scenario shows how BOG protects you from the worst-case odds movement.

Scenario 3: Large Stake, Significant Drift

You back a horse at 3/1 for £100. The horse is a genuine contender but not heavily backed, so it drifts to 5/1. Your horse wins. With BOG, you receive £600 (£100 stake × 6.0 odds). Without BOG, you'd receive £400. Your BOG benefit is £200—a substantial difference that demonstrates why experienced bettors prioritize bookmakers offering BOG.

What Happens When Odds Shorten?

One common misconception is that BOG only benefits you when odds drift. This is incorrect. BOG protects you equally when odds shorten, ensuring you never receive less than your backed price.

When odds shorten, it typically indicates that other bettors have identified value in your selection, or new information has emerged making the outcome more likely. The bookmaker adjusts odds downward to manage their liability. Without BOG, you'd be forced to accept this shortened price. With BOG, you're protected at your original backed price.

This protection mechanism is crucial for early bettors. Many experienced punters place bets days in advance, identifying value before the broader betting public. They accept the risk that their selection might become more likely (and thus odds might shorten), but BOG ensures they're rewarded for their early identification of value.

Which Bookmakers Offer Best Odds Guaranteed?

Not all bookmakers offer BOG, and among those that do, the terms vary significantly. Understanding which bookmakers offer BOG and under what conditions is essential for maximizing this promotion.

Current BOG Availability by Major Bookmakers

Bet365 is widely considered to offer the most comprehensive BOG promotion. They provide it on every UK and Irish horse race and every greyhound race, with no maximum payout limit and no time restrictions beyond the standard 8 AM cutoff on race day. This generosity reflects their business model of attracting high-volume betting.

Coral and Ladbrokes offer strong BOG terms with good coverage across horses and, in Ladbrokes' case, greyhounds. Both bookmakers have maintained relatively generous BOG policies despite market pressures.

Sky Bet's requirement to join their Sky Bet Club (which mandates £30 of bets per week) effectively restricts BOG to active bettors, reducing their overall exposure while still offering the promotion to their most valuable customers.

How BOG Terms Have Changed Over Time

The history of BOG reveals important trends in the betting market. When BOG was first introduced in the late 1990s and early 2000s, it was a genuinely exclusive offer available only at a handful of bookmakers and typically only in their physical shops during limited morning hours.

By the late 2010s, the vast majority of major online bookmakers had extended BOG to all UK and Irish horse races with no time limits. This represented the peak of BOG generosity, driven by intense competition and the profitability of high-volume online betting.

However, the early to mid-2020s marked a significant shift. Two major catalysts drove this change. First, the reduction of stakes on Fixed Odds Betting Terminals (FOBTs) in physical betting shops significantly reduced bookmaker revenues. Second, increased competition and market saturation squeezed profit margins. Bookmakers began restricting BOG to maintain profitability.

William Hill was among the first major bookmakers to restrict BOG, limiting it to bets placed on the day of the race (removing the option to bet days in advance). Paddy Power followed with similar restrictions, moving from unlimited BOG to BOG available only from 8 AM on race day.

Some bookmakers also began excluding BOG on races at certain tracks due to commercial disputes with racecourse owners, further fragmenting the landscape.

What to Look for in a BOG Offer

When evaluating which bookmaker to use, consider these BOG factors:

Time Availability: Earlier availability (8 AM vs. race day only) gives you more flexibility and opportunity to identify value. Bet365's 8 AM start is standard among generous operators.

Bet Type Coverage: Does BOG apply to singles only, or also to each-way bets and multiples? Bet365's inclusion of multiples is exceptional; most competitors exclude them.

Greyhound Coverage: If you bet on greyhounds, not all bookmakers extend BOG to dogs. Bet365 and Ladbrokes do; most others don't.

Maximum Limits: Most bookmakers don't publish maximum payouts, but some may have undisclosed limits. Bet365's explicit statement of no limits is reassuring.

Jurisdictional Scope: Some bookmakers limit BOG to UK and Irish racing only, while others include French or Dubai racing. Check if your preferred racing is covered.

Special Exclusions: Read the small print. Some bookmakers exclude Tote bets, ante-post bets, or certain race types. These exclusions can significantly impact your options.

What Types of Bets Qualify for Best Odds Guaranteed?

BOG eligibility varies by bet type, and understanding these distinctions is crucial for planning your betting strategy.

Singles and Each-Way Bets

Single bets (backing one selection to win) are universally eligible for BOG across all bookmakers offering the promotion. This is the standard application of BOG and requires no special consideration.

Each-way bets are also universally eligible for BOG. An each-way bet is effectively two bets: one on the selection to win, and one on the selection to place (finish in the top 2, 3, or 4, depending on the number of runners). Both components of the each-way bet are settled at BOG odds if the selection wins or places, making each-way betting an excellent use of BOG.

The each-way application of BOG is particularly valuable in handicap races where outsiders frequently drift in odds. A £10 each-way bet at 10/1 that drifts to 14/1 by race time benefits significantly from BOG on both the win and place portions.

Multiples and Accumulators

Multiple bets (betting on multiple selections within a single bet slip) receive inconsistent BOG treatment across bookmakers. Bet365 offers BOG on multiples, making it exceptional in this regard. Most other bookmakers explicitly exclude multiples from their BOG promotion.

When BOG does apply to multiples, it applies to the final odds of the multiple. For example, if you place a £10 double at combined odds of 4/1 (two selections at 2/1 each), and both selections win but one has drifted to 3/1, the multiple is settled at the improved combined odds.

However, because most bookmakers exclude multiples, BOG should not be the primary factor influencing your multiple betting strategy. If you're specifically seeking BOG benefits, focus on single bets or each-way bets.

Special Bet Types: Tote, Ante-Post, and Show Cast

Tote bets (bets placed through the Tote betting pool rather than with the bookmaker at fixed odds) are universally excluded from BOG. This is because Tote bets are settled at Tote odds, which are determined by the pool rather than by bookmaker pricing. BOG cannot apply to pool-determined odds.

Ante-post bets (bets placed well in advance of a race, typically at better odds than available closer to race time) are also universally excluded from BOG. The rationale is that ante-post odds are already offered at significant discounts to encourage early betting, and applying BOG on top of these discounts would be unsustainable for bookmakers.

Show cast bets (a type of bet where you select a horse to show in the top three, with odds that change based on the number of runners) receive mixed treatment. Bet365 includes them in BOG; most others exclude them.

When Can You Place a BOG Bet?

Timing is critical to accessing BOG. Bookmakers impose specific time windows during which BOG is available, and understanding these windows maximizes your options.

Time Windows and Availability

The standard BOG availability window across most generous bookmakers is from 8:00 AM on the day of the race. This means you cannot place a BOG bet before 8 AM, even if the race is scheduled for later in the day.

However, some bookmakers are more restrictive. William Hill now offers BOG only on bets placed on the day of the race (though they don't specify an exact time). Sky Bet begins BOG availability at 9:00 AM. A few smaller bookmakers may have even more restrictive windows.

The 8 AM standard emerged as a compromise between bookmakers wanting to manage odds and bettors wanting reasonable flexibility. It allows bettors to place bets in the morning with reasonable notice before most UK racing begins (typically 12 PM or later), while preventing bookmakers from having to offer BOG on bets placed weeks in advance.

Which Races Qualify?

BOG is not universally available on all races. The standard qualifying races are UK and Irish horse racing. Some bookmakers extend BOG to French racing, Dubai racing, or other international fixtures, but this is not guaranteed.

Most bookmakers explicitly state that BOG applies to "UK and Irish horse racing" or similar language. If you're betting on non-UK/Irish racing, always check whether BOG applies before placing your bet.

Greyhound racing eligibility varies. Bet365 and Ladbrokes offer BOG on all UK greyhound races. Most other bookmakers don't offer BOG on greyhounds at all.

Some bookmakers also exclude specific races or racecourses due to commercial disputes. These exclusions are typically published on the bookmaker's website but can change, so it's worth checking before placing significant bets.

Seasonal Variations and Special Events

BOG terms generally remain consistent throughout the year, but major racing festivals sometimes receive special treatment. During events like the Grand National, Royal Ascot, or Cheltenham Festival, some bookmakers may enhance their BOG terms or remove restrictions, using these high-profile events to attract new customers.

Conversely, some bookmakers may restrict BOG during these events due to the increased volume and volatility. Always check the specific terms during major festivals before assuming standard BOG rules apply.

Common Misconceptions About Best Odds Guaranteed

Several persistent myths about BOG lead bettors to misunderstand or underutilize the promotion.

Misconception 1: "BOG Guarantees My Bet Will Win"

This is the most fundamental misunderstanding. BOG is a price guarantee, not a winning guarantee. It ensures you receive the best available price on a winning bet, but it provides no guarantee that your selection will win.

If you back a horse at 10/1 with BOG and the horse loses, you lose your stake. BOG provides no benefit on losing bets. The promotion only applies if your selection wins; it then guarantees you'll be paid at the higher of your backed price or the starting price.

Misconception 2: "All Bookmakers Offer Identical BOG"

As the table above demonstrates, BOG terms vary significantly. Bet365's comprehensive coverage (all horses, all greyhounds, multiples, no time limit before 8 AM) is substantially different from William Hill's restrictive terms (horses only, day of race only, no multiples).

These differences can amount to thousands of pounds over a year of betting. A bettor who consistently uses a bookmaker with restrictive BOG terms is leaving significant value on the table.

Misconception 3: "BOG Applies to Losing Bets"

Related to the first misconception, some bettors believe BOG provides some protection on losing bets. It does not. BOG is entirely irrelevant if your selection loses. You receive no compensation, no refund, and no price adjustment. Your stake is lost.

Misconception 4: "BOG is Only Valuable When Odds Drift Out"

While odds drifting is the most dramatic BOG scenario, BOG is equally valuable when odds shorten. By protecting you at your backed price when odds contract, BOG ensures you never regret betting early. This protection is especially valuable in volatile markets where odds can move significantly.

Best Odds Guaranteed vs. Other Betting Promotions

BOG exists in a landscape of other betting promotions and strategies. Understanding how BOG compares to alternatives helps you optimize your betting approach.

BOG vs. Matched Betting

Matched betting is a strategy where bettors use bookmaker promotions (like free bets or deposit matches) to generate guaranteed profits by laying the same selection on a betting exchange. BOG and matched betting serve different purposes and are often complementary.

BOG is valuable for bettors making regular selections and seeking natural price improvements. Matched betting is valuable for bettors wanting to systematically extract value from bookmaker promotions. Many advanced bettors use both strategies.

BOG vs. Enhanced Odds

Enhanced odds are temporary promotions where bookmakers offer artificially inflated odds on specific selections (e.g., "4/1 instead of 2/1 on the 3 PM at Ascot"). These are typically available for a limited time or on a limited number of selections.

Enhanced odds provide immediate, guaranteed value on the specific selection. BOG provides conditional value (only if your selection wins) on any selection. Enhanced odds are typically more valuable if available on your selection, but BOG is more reliable as a consistent benefit.

Many bettors combine both strategies: they look for enhanced odds on selections they fancy, and if enhanced odds aren't available, they rely on BOG to capture any price improvement.

BOG vs. Best Odds Guarantee with Conditions

Some bookmakers offer "Best Odds Guaranteed" with significant conditions, such as requiring you to opt-in, restricting it to certain bet types, or applying it only on specific races. These conditional BOG offers are materially inferior to unconditional BOG.

When evaluating a bookmaker's BOG offer, always check whether you must opt-in (and whether you might accidentally forget) and what restrictions apply. Unconditional BOG with minimal restrictions (like Bet365's offering) is substantially more valuable than conditional BOG.

How to Maximize Your BOG Betting Strategy

Understanding BOG is one thing; using it strategically is another. Here are evidence-based approaches to maximize BOG benefits.

Timing Your Bets for Maximum Drift Potential

The most direct way to maximize BOG is to identify selections likely to drift in odds between your bet placement and race time. This requires understanding which types of races and selections are most likely to experience significant odds movement.

Handicap races, especially large-field handicaps, typically experience more odds movement than flat races with small, high-quality fields. This is because handicaps are inherently unpredictable—the weight adjustments create complex form assessment challenges, leading to shifting market views.

Outsiders in competitive races are more likely to drift than favourites. If you identify a 12/1 shot that you believe is underpriced, the odds are more likely to drift to 16/1 than to contract to 8/1. This creates significant BOG upside.

Conversely, heavily backed selections (especially if they're backed by smart money or professional bettors) are more likely to shorten. If you back a 5/1 shot that subsequently becomes a 3/1 favourite, you still benefit from BOG by being protected at 5/1.

The key is to place bets early enough to capture potential drift but not so early that you're betting on stale information. Placing bets in the morning (after 8 AM) of race day, several hours before the race, typically provides the optimal balance.

Which Races Offer the Best BOG Opportunities?

Not all races offer equal BOG value. Certain race types and conditions create more favorable environments for odds movement.

Large-field handicaps offer the most BOG potential. With 15+ runners and complex weight adjustments, market views shift significantly as new information emerges (e.g., a key horse is withdrawn, a jockey change occurs, or new form becomes apparent).

Maiden races (races for horses that haven't won) often experience significant odds movement as market confidence in form assessments changes. Early odds may be speculative; by race time, a clearer picture emerges.

Competitive Group races (high-quality races with multiple contenders of similar ability) see more odds movement than races dominated by a single clear favourite.

Races at unfamiliar venues (e.g., a specialist flat racer running on the all-weather for the first time) often have less accurate early odds, creating drift opportunities as the market recalibrates.

Conversely, races with a single dominant favourite backed by smart money often see odds shorten rather than drift, limiting upside but providing downside protection via BOG.

Combining BOG with Other Strategies

BOG is most powerful when combined with other betting approaches.

BOG + Each-Way Betting: Each-way bets benefit from BOG on both the win and place portions. In handicaps where outsiders frequently place, this combination captures significant value.

BOG + Rule 4 Deductions: Rule 4 deductions reduce your winnings if a non-runner occurs. However, BOG can partially offset this. If you back a 10/1 shot at 5/1 and a Rule 4 deduction of 25% applies, you still benefit from the price improvement.

BOG + Early Betting: Placing bets days in advance (where available) and capturing BOG on price improvements is a core strategy for value bettors. This requires discipline and accurate selection, but the compound benefit of early identification plus BOG can be significant.

BOG + Lay Betting on Exchanges: Some advanced bettors use BOG in combination with lay betting. They back selections at bookmakers with BOG and lay them on exchanges at slightly shorter odds, capturing the gap as profit while retaining upside from BOG if odds drift.

The Future of Best Odds Guaranteed

BOG's future is uncertain, shaped by regulatory changes, market pressures, and bookmaker profitability concerns.

Market Trends and Regulatory Changes

The primary pressure on BOG comes from reduced bookmaker profitability. The reduction of FOBT stakes from £100 to £2 in 2019 significantly impacted high-street betting shop revenues. Online betting margins have also compressed due to increased competition and regulatory costs.

Regulatory pressure is another factor. The UK Gambling Commission has implemented stricter affordability checks and responsible gambling requirements, increasing operational costs for bookmakers. These costs are partially offset by restricting generous promotions like BOG.

Some bookmakers have also faced pressure from racecourse owners and racing authorities over BOG terms. Certain operators have restricted BOG on specific racecourses due to commercial disputes, fragmenting the landscape.

Will BOG Survive?

BOG is unlikely to disappear entirely, but it may become less generous. The most likely scenario is a bifurcated market: premium bookmakers (like Bet365) continue offering comprehensive BOG to attract high-volume bettors, while smaller or more cost-conscious operators restrict BOG to reduce exposure.

The Horseracing Bettors Forum survey found that BOG is the most valued concession among UK bettors, ahead of all other promotions. This suggests strong demand will keep BOG available, even if terms become more restrictive.

However, if bookmaker consolidation continues and the market becomes dominated by a handful of operators, competitive pressure to offer generous BOG may diminish. Conversely, if consolidation leads to fewer operators, those remaining may need to offer generous BOG to compete for customers.

The long-term survival of BOG depends on whether bookmakers can profitably offer it. Current evidence suggests they can, which is why it persists despite market pressures.

Frequently Asked Questions About Best Odds Guaranteed

Q1: What is the difference between BOG and starting price?

BOG is a promotion that guarantees you'll be paid at whichever is higher between your backed price and the starting price. The starting price (SP) is simply the official odds at which a selection opens for betting when the race begins. Without BOG, you'd be locked into your backed price regardless of where the SP lands. With BOG, you benefit if the SP is higher.

Q2: Do I need to opt-in to BOG, or is it automatic?

BOG is automatic at most bookmakers offering it. You don't need to do anything special to activate it—it applies to all qualifying bets on qualifying races. However, some bookmakers (like Sky Bet) require you to opt-in by joining their club or meeting other conditions. Always check your bookmaker's specific terms.

Q3: Can I use BOG on ante-post bets?

No. Ante-post bets are universally excluded from BOG across all bookmakers. Ante-post odds are already discounted to encourage early betting, and bookmakers cannot sustainably offer additional BOG on top of these discounts.

Q4: What happens if the starting price is lower than my backed price?

With BOG, you're protected. You're paid at your backed price, not the lower starting price. This is the downside protection aspect of BOG—it ensures you never regret betting early, even if odds subsequently shorten.

Q5: Is BOG available on greyhound racing?

BOG is available on greyhounds at some bookmakers (Bet365, Ladbrokes, BetVictor) but not others. Most bookmakers restrict BOG to horse racing only. Always check your bookmaker's terms if you're betting on greyhounds.

Q6: Can I combine BOG with other bookmaker promotions?

Generally, yes. BOG can typically be combined with other promotions like free bets or enhanced odds. However, some bookmakers may have specific terms preventing combination. Always read the terms and conditions of any promotion you're using.

Q7: Which bookmaker has the best BOG offer?

Bet365 is widely regarded as offering the most comprehensive BOG promotion: available on all UK and Irish horse and greyhound races, from 8 AM on race day, on singles, each-way bets, and multiples, with no stated maximum limit. However, other bookmakers like Coral and Ladbrokes offer competitive terms, and the "best" option depends on your specific betting patterns and preferences.

Q8: How does Rule 4 interact with BOG?

Rule 4 deductions apply to winnings if a non-runner occurs. BOG applies to the odds at which you're paid. If a Rule 4 deduction applies, it reduces your winnings calculated at the BOG odds. For example, if you win at 10/1 with a 25% Rule 4 deduction, you're paid at 7.5/1 (75% of 10/1), not at reduced odds. BOG doesn't eliminate Rule 4 deductions, but it ensures you're paid at the best available odds before the deduction is applied.

Summary

Best Odds Guaranteed is a powerful betting promotion that ensures you receive the best possible price on your winning bets. By guaranteeing payment at whichever is higher between your backed price and the starting price, BOG eliminates the risk of early betting while rewarding you for identifying value before the broader market.

The promotion's value varies significantly based on your betting patterns, the bookmaker's terms, and your selection strategy. Bettors who place bets early and identify selections likely to drift in odds benefit most from BOG. Those betting close to race time or on heavily backed selections benefit less from upside but still gain downside protection.

Understanding BOG's mechanics, limitations, and variations across bookmakers is essential for modern bettors. By choosing bookmakers offering comprehensive BOG terms and timing your bets strategically, you can capture meaningful additional value over time.