A protest against any horse which has started in a race shall be made to the Stewards in writing, signed by the protester, within 48 hours of the race, except as noted in 325:70-1-10. Any such protest shall set forth the specific reason or reasons for the protest in such detail as to establish probable cause for the protest. The Stewards upon their own motion may consider a protest at any time.
Okla. Admin. Code § 325:70-1-7