Rule 4 Deductions Place Bet — Full UK Deduction Table

A horse is withdrawn from a race after you have already placed your bet. The remaining field is smaller, the odds have effectively shifted, and your bet — locked in at the original price — no longer reflects the true market. This is the problem Rule 4 exists to solve. Formally known as Tattersalls Rule 4(c), it authorises bookmakers to apply a deduction to your winnings when a horse is withdrawn after betting has opened, adjusting the payout to account for the non-runner’s absence.

For win bettors, Rule 4 is an occasional annoyance. For place bettors, it can hit twice: once through the deduction itself, and again through the potential loss of a paid place if the field drops below a threshold. Understanding both effects — how much gets deducted from your payout and whether the number of paid places changes — is essential for anyone who bets regularly on UK horse racing.

Complete Rule 4 Deduction Table

The size of a Rule 4 deduction depends on the price of the withdrawn horse at the time of withdrawal. The shorter the price, the bigger the impact its absence has on the remaining field, and the larger the deduction applied to your returns. The scale runs from zero to a maximum of 90p in the pound — meaning up to 90% of your winnings can be deducted in extreme cases.

Here is the complete Rule 4 deduction table, as set out under Tattersalls rules:

The deduction is applied to your winnings, not your total returns. If you placed a £10 bet at 4/1 and the horse wins, your normal profit would be £40. With a 20p Rule 4 deduction (matching a withdrawn horse priced at 16/5 to 4/1), you lose 20p per pound of winnings: £40 × 0.20 = £8 deducted. Your profit becomes £32, plus your £10 stake returned, for total returns of £42 instead of £50.

How Rule 4 Specifically Affects Place Bet Payouts

Rule 4 affects place bets in a way that many bettors overlook: the deduction is applied to the place part of the payout separately. Your place bet returns are calculated at the place odds (win odds × place fraction), and then the Rule 4 deduction is applied to those place winnings. The reduced payout can be surprisingly small.

Take a concrete example. You have a £10 place bet on a horse at 8/1 in a 12-runner handicap. Three places are paid at 1/4 odds. Place odds = 8/1 × 1/4 = 2/1. If the horse places, your normal return would be £10 × 2 + £10 = £30 (profit of £20). Now a non-runner is declared — the 5/2 second favourite. That triggers a 25p Rule 4 deduction. Applied to your place profit: £20 × 0.25 = £5.00 deducted. Your adjusted return becomes £25 instead of £30.

But there is a second, potentially bigger impact. If that non-runner drops the field from 12 to 11 declared runners, you remain in the 8+ non-handicap or 12–15 handicap tier — the place terms may stay at three places. However, if the field drops from 8 to 7 runners, the terms shift from three places at 1/5 odds to just two places at 1/4 odds. You have lost an entire paid position. The Rule 4 deduction is an irritation; the reduction in paid places can fundamentally change whether your bet is a winner or a loser.

This double impact — reduced payout plus potential loss of a paid place — is unique to place betting and each-way betting. Win bettors only face the deduction itself. Place bettors face a structural change in the bet’s terms. It is one of the strongest arguments for checking the number of declared runners before betting and for being especially cautious in races hovering near the threshold boundaries: 7/8 runners and 11/12 runners for handicaps.

Multiple Non-Runners and Cumulative Deductions

When more than one horse is withdrawn from a race, the Rule 4 deductions are cumulative — each non-runner’s deduction is added to the total. If a 3/1 shot (25p deduction) and a 9/2 shot (15p deduction) are both withdrawn, the combined deduction is 40p in the pound. However, there is an absolute ceiling: the total deduction can never exceed 90p in the pound, regardless of how many horses are withdrawn.

In practice, reaching the 90p cap requires a remarkable set of circumstances — multiple short-priced horses pulling out of the same race. But cumulative deductions of 30p to 40p are not unheard of at major meetings, where fields are large and withdrawal patterns can cluster. The number of horses in training in the UK fell 2.3% to 21,728 in 2025, a trend that has contributed to smaller fields and more frequent non-runner situations across the board.

The financial effect of cumulative deductions on place bets is amplified by the already-reduced place odds. Your place profit at 1/5 or 1/4 of the win odds is inherently smaller than a win profit, so the same percentage deduction removes a larger proportion of your meaningful return. A 25p combined deduction on a win profit of £80 costs you £20. The same 25p deduction on a place profit of £20 costs you £5 — the same percentage, but it takes your place return from a worthwhile £30 to a marginal £25. At some point, the eroded place returns no longer justify the risk, and recognising that threshold is part of disciplined place betting.

Why Ante-Post Bets Are Exempt from Rule 4

Ante-post bets — those placed before the final declarations for a race — are completely exempt from Rule 4 deductions. If you back a horse ante-post at 10/1 for the Grand National in January and three horses are withdrawn on the morning of the race, your bet is unaffected by any deduction. The price you took is the price you get, assuming your horse runs.

The catch, of course, is that ante-post bets carry their own risk: if your horse does not run, you lose your stake entirely. There is no void, no refund, no Rule 4 adjustment — the bet simply loses. This is the trade-off. You accept the non-runner risk in exchange for the price you locked in early and the immunity from any Rule 4 erosion that would apply to day-of-race bets.

For place bettors, this exemption has strategic significance. If you identify a horse at a generous ante-post price for a big-field festival handicap — the kind of race where multiple withdrawals and cumulative Rule 4 deductions are most likely — the ante-post route lets you secure the price without worrying about deductions chipping away at your returns. The risk is that the horse does not make the race at all. But if it runs, you collect at the full advertised odds with no reduction. In races where the Rule 4 exposure is highest, the ante-post exemption is not just a technicality — it is a genuine structural advantage for bettors willing to accept the associated risk.