It's one race, one horse, one day.
Favourite punters found another way to get beaten at Yarmouth in the United Kingdom on Thursday when the $51 victor of the opening juvenile race was later found to be her three-year-old stablemate, who had been due to run later that day.
A report issued by the British Horseracing Authority: "The stewards held an inquiry to consider the circumstances surrounding the identification of the 50-1 victor, Mandarin Princess, trained by Charlie McBride, which was presented at the sampling unit for routine testing".
Millie's Kiss, a three-year-old with plenty of racecourse experience, was due to run in the nine-furlong handicap later on the card but was subsequently withdrawn.
"The Stewards held an enquiry to consider the circumstances surrounding the identification of the victor, MANDARIN PRINCESS, trained by Philip McBride, which was presented at the Sampling Unit for routine testing".
Confusion reigned at Yarmouth overnight, with the 50-1 victor of a two-year-old race later revealed to in fact be her three-year-old stablemate.
The stewards hold an inquiry into the incident and after interviewing the trainer, stable groom, veterinary officer and equine welfare integrity officer responsible for the sampling unit they refer the matter to the BHA head office and withdraw Millie's Kiss from the 1m1f handicap at 3.15.
While you're here.Watch Wooly, Lar Corbett, Daithí Regan, Dion Fanning, Conor Sketches and Carlow's Endline Challenge on SportsJOE Live Episode 20.
Trainers Sharon Kotzen and Corrie Lensley were recently fined for presenting the wrong horse for racing.
"It's a genuine mistake and humans make mistakes", said McBride. This was well after correct weight had been declared, which remarkably left on-course stewards with no power to overturn the result.
John Egan, who rode the "winner", said he was surprised the horse was not disqualified or the race declared void.
'Mistakes happen. I feel most sorry for Charlie.
"Having said that, and while we have not seen an incident of this nature in recent times, we will of course determine what steps need to be put in place to prevent it from happening again", the BHA said.