Stewards will be able to declare a horse a non-runner in any race without starting stalls if they deem that contender has been denied a fair start after a rule change was made by the British Horseracing Authority (BHA). Beginning next Wednesday, the rule change brings both NH and Flat together. There was already a similar rule in place since last May for horses jumping from the starting stalls. Stewards will be able to deem a horse a non-runner if they believe the horse did not get a fair start...