Horse Racing Rule 4 Deductions

  • Rule 4 deductions apply when a non-runner is announced on the day of the race, after you have made your bet.
  • This improves the chances of other horses winning, so bookmakers adjust their odds.
  • If your horse is withdrawn, your stake is returned.
  • If another horse is withdrawn, any winning bets will be subject to a rule 4 deduction based on the odds of the withdrawn horse. 'Place bets' are included.
  • If the favourite is withdrawn, the deduction will be sizeable. Non-runners at long odds don't have much affect.
  • Deductions are usually quoted as 'pence in the pound' - this refers to the percentage of any winnings deducted.

NON RUNNER ODDS

DEDUCTION

UK
Decimal
UK
Decimal
Up to
1/9
(1.11)
90%
2/11
(1.18)
to
2/17
(1.12)
85%
1/4
(1.25)
to
1/5
(1.20)
80%
3/10
(1.30)
to
2/7
(1.29)
75%
2/5
(1.40)
to
1/3
(1.33)
70%
8/15
(1.53)
to
4/9
(1.44)
65%
8/13
(1.62)
to
4/7
(1.57)
60%
4/5
(1.80)
to
4/6
(1.67)
55%
20/21
(1.95)
to
5/6
(1.83)
50%
Evens
(2.00)
to
6/5
(2.20)
45%
5/4
(2.25)
to
6/4
(2.50)
40%
13/8
(2.63)
to
7/4
(2.75)
35%
15/8
(2.88)
to
9/4
(3.25)
30%
5/2
(3.50)
to
3/1
(4.00)
25%
10/3
(4.33)
to
4/1
(5.00)
20%
9/2
(5.50)
to
11/2
(6.50)
15%
6/1
(7.00)
to
9/1
(10.00)
10%
10/1
(11.00)
to
14/1
(15.00)
5%
Over
14/1
(15.00)
None

 

  • Some bookies will only apply rule 4 up to 75%, and some will not apply the 5% reduction. Always check the terms on the site.
  • Be careful with ante post bets (which are made at least a day before the race) which normally do NOT refund stakes on non-runners.
  • Bookies normally update their odds quickly after a non-runner is announced, and will often change them to SP (Starting Price) while they are updating. If the odds you get are subject to a Rule 4 deductions, they should make this clear to you. Read your bet slip carefully!

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