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Rule 4: Meaning and use

Last Updated: Feb 29, 2016 02:57PM CET

The Tattersalls' Rule 4 protects players and bookmakers in fixed-odds markets from the risk of late withdrawals. Summarized it means that any bets placed on horses which are subsequently withdrawn shall be refunded and in return all payouts for winning bets laid in any market where such non-runners were still priced up shall be subject to a deduction.

At we apply the Rule 4 to all fixed-odds but not ante-post markets. Once the final declaration stage for a race is reached, which happens usually some days before the actual race day, its markets are not ante-post anymore and all bets placed in such markets will therefore be settled in accordance with these rules. In the head of the market and in the fixed-odds betting dialog it is stated "Rule 4 applies" if it's bets are subject to the Tattersalls' Rule 4


A deduction only applies to winning bets which were laid in a market where one or multiple non-runners were still priced up. Therefore, the following rates of deduction are only applied for those non-runners which were not declared as such in the market the bet was laid in:

Price of non-runner
at time of withdrawal
Percentage deducted
from net winnings
1/9 or longer odds on
1.11 or longer odds on
2/11 to 2/17
1.18 to 1.12
1/4 to 1/5
1.25 to 1.20
3/10 to 2/7
1.30 to 1.28
2/5 to 1/3
1.40 to 1.33
8/15 to 4/9
1.53 to 1.44
8/13 to 4/7
1.61 to 1.57
4/5 to 4/6
1.80 to 1.67
20/21 to 5/6
1.95 to 1.83
1/1 to 6/5
2.00 to 2.05
5/4 to 6/4
2.25 to 2.5
13/8 to 7/4
2.62 to 2.75
15/8 to 9/4
2.88 to 3.25
5/2 to 3/1
3.50 to 4.00
10/3 to 4/1
4.33 to 5.00
9/2 to 11/2
5.50 to 6.50
6/1 to 9/1
7.00 to 10.00
10/1 to 14/1
11.00 to 15.00
Over 14/1
Over 15.00
No deduction

Should in one race more than one horse be declared as a non-runner, the according deductions are added up, but the total deduction shall not exceed 90%. Should the total deduction be 5% it will be waived.

Should a horse be withdrawn and a new market formed, then any bets laid in the original market will be subject to the above deductions. In the event of a further withdrawal after the market has been re-formed, bets placed in the original market will be subject to a further deduction based on the last price of the withdrawn horse in the original market. Bets placed in the new market will be subject to a deduction based on the current price. See below for an example.

Understanding your Deduction

As always we tried to implement these rules as traceable as possible for you. If you roll over the "Rule 4 applies" information at the head of a race card you will see a tooltip showing you any deductions applied to bets in this market if any together with the according non-runners. Further you will see the deduction applied to your bet when you open the bet details in the "My Bets" section. However, if you have any questions about the Rule 4 deductions please do not hesitate to contact us.


  Market A Market B Market C
Runner 1 2.00 1.61 1.40
Runner 2 10.00 8.50 Non-Runner
Runner 3 4.00 3.25 3.00
Runner 4 5.00 Non-Runner Non-Runner
Runner 5 20.00 20.00 17.00

We assume to have a race with initially 5 runners which has been priced up as displayed above in the column "Market A". One hour before the race runner 4 is withdrawn. The fixed odds of a market are changing frequently but whenever a runner is entered into or withdrawn from a race, a new market is formed by the bookmaker. Therefore after this withdrawal the Market B has been formed and when a bit later runner 2 was also declared a non-runner Market C has been formed.

Three players placed a win bet of €10 each on runner 3. The first bet was placed in the original market (A), the second bet was placed in market B and the third bet was placed a bit later in the Market C. All other players who bet on the withdrawn runners 2 and 4 get their stakes refunded. Runner 3 wins the race which results in the following payouts:

The player who placed his bet in Market A would usually receive a payout of €40 (which are €30 net winnings). However, according to the rules above he will have a total deduction of 30% from his net winnings as runner 4 was priced with 5.00 in his market at the time of withdrawal (20% deduction) and runner 2 was priced 10.00 (10% deduction). Therefore his payout will be €10 + (€30 x 70%) = €31.

The player who placed his bet in Market B would usually receive a payout of €32.50. However, according to the rules above he will have a total deduction of 10% from his net winnings as runner 2 was priced with 8.50 in his market. As runner 4 was already not priced up any more at the time he placed his bet no deduction applies for this non-runner. Therefore his payout will be €10 + (€22.50 x 90%) = €30.25.

The player who placed his bet in Market C receives his payout of €30 without any deductions as both non-runners were already declared as such in the market his bet was laid in.

As you can see all players got a similar payout for their bets even if they placed them in different markets. Further all the players which laid a bet on the runners which were subsequently withdrawn are happy as they got their stakes refunded.

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