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Deductions for Withdrawn Runners: How Late Scratchings Reduce Fixed-Odds Payouts

Deductions for Withdrawn Runners: How Late Scratchings Reduce Fixed-Odds Payouts

When a horse is scratched after you have bet, fixed-odds bookmakers cut your payout by a set deduction rather than voiding the bet. This explains the scales, the 50% cap, and when bets are refunded instead.

How Betting Odds Work

Home › Topics › How Betting Odds Work › Deductions for Withdrawn Runners: How Late Scratchings Reduce Fixed-Odds Payouts

What a deduction actually is

A deduction is a cut taken from your winnings, not from your stake. You keep the bet, you keep the price you took, and the payout is trimmed by a percentage that reflects how much chance the withdrawn horse had of beating you.

That is the whole idea. If the horse that came out was a 2 to 1 shot, its absence made your horse's task easier, so your payout is reduced. If the horse that came out was a 33 to 1 outsider, its absence changed almost nothing, so no deduction is applied at all.

This is different from a refund. A refund returns your stake and cancels the bet. A deduction leaves the bet running and pays you less. Which one you get depends on the type of bet and, in some cases, on how many runners are left.

The deduction scale

The scale is set by the price of the withdrawn horse at the moment it comes out. One Indian bookmaker's rulebook sets out its scale like this2:

The deduction scale
Price of the withdrawn horseDeduction
Evens or shorter (odds on)50 paise in the rupee
Over evens and under 4 to 125 paise in the rupee
4 to 1 and under 10 to 112 paise in the rupee
10 to 1 or overNo change

A paise in the rupee is a hundredth, so 50 paise is 50%, 25 paise is 25% and 12 paise is 12%. The scale is quoted in rupees because it comes from the Indian subcontinent's bookmaker rules, but the percentages are what matter and they are applied the same way wherever a fixed-odds racing book uses a deduction.

The maximum total deduction is 50% for WIN and PLACE bets1. That cap matters when more than one horse comes out. Two withdrawals at 25% each would be 50% together, and that is the ceiling. You will not see a bet cut by 75% because three horses were scratched.

Worked examples

Say you have JPY 10,000 on a horse at 5.00 in a fixed-odds win book, and a rival priced at evens is withdrawn late.

The deduction is 50%, so your effective price becomes 2.50. Your return is JPY 25,000 instead of JPY 50,000. Your stake is not touched, and the bet still stands.

Now say the withdrawn horse was priced at 6 to 1. The deduction is 12%. Your effective price on a 5.00 bet becomes 4.40, and your return is JPY 44,000.

Now say the withdrawn horse was 20 to 1. No deduction. You collect the full JPY 50,000 if your horse wins.

The pattern is worth holding onto: the shorter the horse that came out, the more your payout shrinks. A late withdrawal of the favorite is the expensive case.

When bets are refunded instead

Deductions apply to fixed-odds WIN and PLACE books. In pari-mutuel pools, the usual answer is a refund, and the mechanics are more granular.

In a single race pool, bets involving the withdrawn horse are refunded4. If you backed the horse that came out, you get your stake back. If you backed something else, your bet stands.

In a multiple bet, only the portion relating to the withdrawn horse is refunded and the remaining bets stand5. So a treble that includes a scratched runner becomes a double on the other two legs, with the stake adjusted accordingly.

Some multi-race pools work differently. Where only one horse counts in each leg, no refunds are made at all and the favorite in the affected leg is substituted for each withdrawal1. That is the rule for pools like the Double Trio and Triple Trio, where the structure makes a partial refund impractical.

There is a separate case for bracketed numbers in overseas races. If one or more but not all horses in a bracket are withdrawn, all bets remain valid and you are treated as having selected the remaining bracketed runners, excluding the withdrawn one5.

When the whole race is void

If a race is postponed, canceled or declared void, each accepted bet is refundable6. For a single race pool, all bets are refunded in full4.

When the whole race is void

For an overseas race declared void, all bets are refunded in full even if the stewards order a rerun3. A rerun of a dead heat is treated as a separate race and does not change the original race's declared dividends3.

Multi-race pools have their own logic. If every leg is void, all bets are refunded. If some legs are run, your bet stays valid on the races that actually happened, and the void legs are simply ignored4.

When PLACE bets are void

PLACE is the bet type most likely to be voided by a thin field, because it needs enough runners to fill its places.

A place bet wins if your horse finishes in the top three, or in the top two when seven or fewer horses run7. Under the National Association of Racing's rules it is offered only when five or more horses are declared7. The Hong Kong place pool shown below has its own thresholds and pays two dividends with as few as four runners3. In Japan the same rule is expressed as picking a horse to finish within third place, or second place when seven or fewer runners start8.

The pool closes and all bets are refunded when the field falls below the minimum3:

Place pool typeMinimum runnersBelow this, all bets refunded
Three dividends5Fewer than 5
Two dividends4Fewer than 4

Overseas place pools have their own thresholds: fewer than six starters for a four-dividend pool, fewer than five for three dividends, and fewer than four for two dividends5.

There is one more case worth knowing. In place betting the net pool is shared by the placed horses that were actually backed. If none of the placed horses was backed, all bets are refunded3.

Races with more than one withdrawn horse

Multiple withdrawals are where the 50% cap does the work. Each withdrawn horse carries its own deduction, and the total is capped at 50% for WIN and PLACE1.

Races with more than one withdrawn horse

In pari-mutuel terms, each scratched horse is handled separately. Bets on each scratched horse are refunded, and in a multiple bet only the portions relating to scratched horses come back3.

Field composition rules also come into play when a race is oversubscribed9:

  • If a horse is withdrawn after riders are declared, a reserve may be substituted.
  • If ratings are equal, the horse with the higher declared weight at the earlier declaration time takes priority, and if still equal the second, third and fourth highest rated horses are drawn by lot.
  • If the number of declared runners still exceeds the limit, the stewards decide by lot.

For a bettor, the practical point is simple: a race with several late scratchings can end up with a very different shape from the one you studied, and your payout will reflect that.

What the rules do not cover

A few things sit outside the deduction question and are worth separating out.

Deductions are not a tax. In Japan, when you declare public racing payouts, only the purchase cost of winning tickets can be deducted. The cost of losing tickets cannot10. Refunded amounts, such as cancellations before the start of a race, are excluded from total sales when payouts are calculated11.

Deductions are also not the same as a handling fee. Some bet types carry a separate fee on refunds. In a handicap bet, for example, a refund may be subject to a handling fee determined by the operator when the handicap score is a draw12.

And deductions are not a rebate. Rebates are a separate scheme that returns a percentage of losing stakes. In Hong Kong, rebate applies to each bet placed in Win, Place, Quinella and Quinella Place for local and overseas races, except outbound commingling13. The rates are 10% of the total losing bet amount for Win and Place on local races, and 12% for Quinella and Quinella Place13. A rebate scheme returning 10% of the total stake on losing bets in four designated pools has been in place since the 2006-07 racing season14.

One last practical note: payouts, refunds and rebates not claimed within 60 days of the race are forfeited6. If a withdrawal has left you with a refund to collect, do not leave it sitting.

Common Questions

What is the maximum deduction when a horse is withdrawn?

The maximum total deduction is 50% for both WIN and PLACE bets. That cap applies when the withdrawn horse was priced at evens or shorter. Longer prices attract smaller deductions, and a horse at 10 to 1 or bigger usually leaves your payout untouched.

What happens to my bet if only one horse is left in the race?

If the field drops below the minimum for that pool, the pool is terminated and all bets are refunded. For a WIN pool that threshold is fewer than two runners. For PLACE it depends on how many dividends the race pays.

Do I get my money back if several horses are scratched?

In a single race pool, bets on each scratched horse are refunded. In a multiple bet, only the portion relating to the scratched horse comes back and the rest of the bet stands. In some multi-race pools no refund is made at all and a favorite is substituted.

When are PLACE bets void?

PLACE pools close and all bets are refunded when the field falls below the minimum: fewer than five runners for a three-dividend place pool, or fewer than four for a two-dividend pool. Overseas place pools have their own thresholds.

How is the deduction rate calculated for each withdrawn horse?

The rate is set by the withdrawn horse's price at the time it comes out. Shorter prices mean bigger deductions. A horse at evens or shorter takes the full 50%, one between 4 to 1 and 10 to 1 takes 12 paise in the rupee, and one at 10 to 1 or longer takes nothing.

Do deduction rules apply to both WIN and PLACE bets?

Yes. Deduction scales of this kind apply to WIN and PLACE bets alike, and the 50% cap covers both. Other bet types such as quinella, exacta and trio are usually handled by refunding the affected combination instead of applying a deduction.

Sources14 sources
  1. Horse Race Rule 3 (English), Hong Kong Jockey Club, January 2023
  2. Bookmakers Betting Rules, Hydraces
  3. Horse Race Rule 6 (English), Hong Kong Jockey Club, May 2025
  4. Horse Race Rule 3 (Chinese), Hong Kong Jockey Club, January 2023
  5. Horse Race Rule 4 (Chinese), Hong Kong Jockey Club, January 2023
  6. Horse Race Rule 2 (Chinese), Hong Kong Jockey Club, January 2023
  7. How to Bet, Japan Racing Association
  8. FAQ, Keiba Go
  9. Race Conditions, Hong Kong Jockey Club
  10. Tax Guidance on Public Racing Payouts, National Tax Agency of Japan, 2026
  11. JRA FAQ on Payout Calculation, Japan Racing Association, April 2014
  12. Football Rule 3 (English), Hong Kong Jockey Club, January 2026
  13. Horse Racing Guide, Hong Kong Jockey Club
  14. Government News Bulletin, Hong Kong Government, August 2006