Simple Verse has been reinstated as the winner of the 2015 Ladbrokes St Leger at Doncaster after a successful appeal.
She became the first filly to win the race for 23 years but was demoted to second place - behind Bondi Beach - after a stewards’ inquiry.
An appeal was heard at the British Horseracing Authority (BHA) in London on Wednesday.
The decision to alter the result means Simple Verse is the first horse to win a British Classic, be disqualified from first and then be awarded the race again in an appeal.
Simple Verse’s trainer Ralph Beckett said: “It’s not quite the same, and it’s never going to be quite the same, in the sense of when you have it taken away on the day.
“It was horrendous at the time and it’s been a pretty miserable 11 days for those who live and work with me. It’s not been much fun.”
Bondi Beach’s trainer Aidan O’Brien said: “I am delighted for Ralph Beckett and Sheikh Fahad on his first (British) Classic win, we felt we had a fair hearing and some you win and some you lose. Colm [O’Donoghue] lost a Classic, but I’m sure he will get more, life goes on - some days work for you and some against.”
Ladbrokes, Coral, BoyleSports and Betfred have paid out on ante-post winning single bets on Simple Verse after the result was reversed.
William Hill had already paid out on both results.