Section 11.04.01.636 - SCRATCHES01.Scratches. A horse may be scratched from a race if eight (8) betting interests remain in the race.02.Request to Withdraw. If there are more requests to withdraw than are available, permission to withdraw will be decided by lot. However, in all races involving the Daily Double or Trifecta, no entry may be withdrawn that would reduce the starting field to less than the number designated by the Racing Secretary except with the permission of the Stewards.03.Other Causes. No other entries will be excused except upon receipt of a Veterinarian's Certificate of unfitness, a change of track conditions since the time of entry, or other causes acceptable to the Stewards.Idaho Admin. Code r. 11.04.01.636