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Open every racecard in full and get your research done before they go to post.
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- 20+bookmaker prices side by side
- Trackeralerts when your horses are declared
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How Rule 4 works
A Rule 4 deduction reduces winnings when a runner is withdrawn after bets have been struck. Returned stake is shown separately from deducted winnings.
Rule 4 calculator
Calculated in your browser. Nothing you enter is stored or sent. Check your bookmaker's own rules, which can vary.
See it on today's card
Members get every one of these numbers applied to today's runners, with RWS scores, market alerts and full form, inside RaceWatch.
By continuing you agree to our Terms and Intellectual Property and Acceptable Use policy.
Questions people ask
What prices can I enter?
Enter fractional prices such as 5/2, evens, or decimal prices such as 3.50.
Is this the bookmaker's final settlement?
No. Bookmakers can apply their own published Rule 4 tables, so check the terms for your bet.
Go deeper before the next race.
Open every racecard in full and get your research done before they go to post.
- 14racecard tabs per race
- 20+bookmaker prices side by side
- Trackeralerts when your horses are declared
30-day free trial
£0today
Start my 30-day free trialBy continuing you agree to our Terms and Intellectual Property and Acceptable Use policy.
£0 today. Card on step 2. £24.99 from day 31.Cancel any time.