Rule 4 deductions table - What Happens to Your Bet?
RULE 4! What is it? How does it affect Matched Betting on Horse racing?
One a rare occasion, you'll realise that your profits from the bookmaker aren't exactly what you expected. This is down to a rule 4 deduction, a rare situation when a horse is withdrawn from a race and you have already bet on that race on a different horse.
This means the bookmaker is permitted to recalculate and correct their prices as it was made up of all the original horses in the race. All bets that have been placed will have the following amounts deducted from them. The deduction is taken from your potential winnings. Your stake value does not change.
Rule 4 will be applied by both the bookmaker and the exchange, so if you have already backed and layed then you do not need to do anything.!
One issue you may come across is if you're doing the popular Bet365 4/1 offer and you bet on a horse at 5.0 before a rule 4 occurs. After the rule 4 deduction, your horse might no longer qualify.
How to calculate your new back odds after a rule 4 reduction?
Using the table below you will need to find out your rule 4 reduction.
The formula to calculate the Rule 4 deductions
( BACK ODDS - 1 ) X ( 1 - R4 REDUCTION ) + 1
Example, if your back odds were 5.0 and there has been a 15p rule 4 reduction applied then your new odds would be 4.4.
(5.0 - 1) = 4
(1 - 0.15) = 0.85
The Rule 4 Deduction Table
Odds and Deductions:
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The rule 4 deductions table below shows how much value is taken back by the bookmaker at the initial price you betted on. For example, if you backed a horse at odds of 2.13 and placed a £50 back bet, then 85p is taken from every £1 you initially won.
|Odds on Horse (Decimal)||Odds on Horse (fraction)||Value took by the bookmaker for every £1|
|1.11||1/9 or shorter||90p|
|2.13 - 1.18||1/8 to 2/11||85p|
|1.25 - 1.2||1/4 to 1/5||80p|
|1.3 - 1.29||3/10 to 2/7||75p|
|1.4 - 1.33||2/5 to 1/3||70p|
|1.53 - 1.44||8/15 to 4/9
|1.62 - 1.57||8/13 to 4/7||60p|
|1.8 - 1.07||4/5 to 4/60||55p|
|1.95 - 1.83||20/21 to 5/6||50p|
|2.0 - 2.2||Evens to 6/5
|2.25 - 2.5||5/4 to 6/4||40p|
|2.63 - 2.75||13/8 to 7/4||35p|
|2.88 - 3.25||15/8 to 9/4||30p|
|3.5 - 1.3||5/2 to 3/10||25p|
|4.33 - 5.0||10/3 to 4/1||20p|
|5.5 - 6.5||9/2 to 11/2||15p|
|7.0 - 10.0||6/1 to 9/1||10p|
|11 - 15.0||10/1 to 14/1||5p|
|15.0 +||Over 14/1||No Deductions are made|
We hope this helps! Any questions around rule 4 please post in the comments below. Happy matching betting everyone!
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