Sportsbook: Non-Runner Rules

I bet on a non-runner, what happens to my bet?

  • Bets placed on Antepost markets will be settled as a losing bets.
  • Bets places on Day of the Race markets will have their stakes returned once the non-runner is declared.
  • If you have placed an accumulator, the line related to the non-runner will be void, you will receive your stake for that line back. The rest of the lines in the accumulator will still stand.

What does non-runner, no bet mean?
NRNB is our safety guarantee to you. Place your bets without worrying about your selection not running.
Betfair Sportsbook offer Non-Runner No Bet on selected Ante-Post races all year-round. After a race becomes Non-Runner No Bet, any Ante-Post bets placed on the Win or Each-Way market will be refunded if your selection does not run.
This refund will apply to bonus cash and free bets, as long as the free bet was not due to expire before the refund is issued.

My bet was a winner, what are non-runner deductions?
When you place your bet, the price you see is based on all horses running in the race. If a horse is a non-runner, the price will be revised and a deduction applied for the remaining horses.

Sportsbook treats non-runners the same as every other bookmaker, by applying a 'Rule 4'. The 'Rule 4' deduction values are industry standard, deductions are measured by a number of pence in the £, based on the odds of the horse at the point of withdrawal.

 Odds From

 Odds To

 Deductions (p in £)


or Shorter 


























 Evens (1/1)




























If you had a bet on a horse for £10 at 10/1 that went on to win, but in the same race the favourite (priced at 2/5) pulled out, your total return would be:

Pre 'Rule 4'

£10 x 10 = £100 (profit pre 'Rule 4')

£100 + £10 = £110 (total return pre 'Rule 4')

Post Rule 4
£100 less 70% (70p in the £) = £30 (profit post 'Rule 4')

£30 + £10 = £40 (total return post 'Rule 4')


This is different to the Exchange, which applies a separate non-runner reduction calculation.

More about reduction factors and how they are calculated