There is also a Fillies Triple Crown for a filly winning the 1,000 Guineas Stakes, Epsom Oaks and St. Leger Stakes. The last winner of this was Oh So Sharp in 1985. In the past this was not considered a true Triple Crown as the best fillies would run in the Derby and Two Thousand Guineas. As this is no longer the case, the Fillies' Triple Crown would now be considered as comparable as the original.
In the 150 years that these races have been run, only fifteen horses have ever won the English Triple Crown, including the great Nijinsky II in 1970. Nijinsky II was only the second winner of the English Triple Crown since the end of World War I. For many years, it was considered unlikely that any horse would ever win the English Triple Crown again. In the winter of 2006/2007, however, trainer Jim Bolger was training his unbeaten colt Teofilo for the Triple Crown
and bookmaker William Hill plc was offering odds of only 12/1 against Teofilo winning the 2007 Triple Crown. However, the horse was withdrawn from the 2000 Guineas two days before the race after suffering a setback.
Since Nijinsky, only Nashwan in 1989 has won both the Guineas and the Derby, and in addition, no Derby winner has even entered the St. Leger since Reference Point in 1987, although this is primarily due to the impact it would have on a horse's stud value, which would not be the case for a horse who had already won the Guineas.
Triple Crown Champions:
In Ireland, the Triple Crown, modelled on the English equivalent, is made up of
all run at the Curragh.
Only two horses have won all three races since the Irish Two Thousand Guineas was first run in 1921: Museum in 1935 and Windsor Slipper in 1942 (Williams & Hyland 1980). Desert King won the first two legs in 1997, but was perceived to have stamina limitations and not aimed at the St. Leger. Ironically, he went on to sire a great stayer in Makybe Diva, three times winner of the Melbourne Cup over .
Japanese Triple Crown
Only six horses have received the Japanese Triple Crown:
Japanese Fillies' Triple Crown
Only two horses have received the Japanese Fillies' Triple Crown:
In 1994, River Verdon became the first, and to date, only horse to win the Hong Kong Triple Crown.
This combination of races received some publicity outside of Uruguay in 2006. The 2005 Triple Crown winner Invasor, after being sold to Sheik Hamdan bin Rashid Al Maktoum's Shadwell Racing and sent to be raced in the United States, went on to win three Grade I races in 2006 before winning that year's Breeders' Cup Classic. He finished the year as the top-ranked horse in the 2006 World Thoroughbred Racehorse Rankings, and won the 2007 Dubai World Cup before being retired to stud following a training injury.
1980 - present
Ecuador has two sets of races referred to as Triple Crowns:
Ecuador Triple Crown
Ecuador Fillies' Triple Crown
Pre-1980
In Ecuador, the Triple Crown consists of:
Triple Crown Champions:
| Year | Winner | Jockey | Trainer | Owner |
| Miss Florida | ||||
| Bananita | ||||
| Capo Di Monte II | ||||
| 1967 | Alcatraz | Estuardo Torero | Alcides Guerrero | Inginiero Miguel Salem Dibo |
| Pechiche | ||||
| 1971 | Farsante | Estuardo Torero | Alcides Guerrero | Inginiero Miguel Salem Dibo |
Venezuela
1956 - present
Venezuela also has two sets of races referred to as Triple Crowns:
Venezuelan Official Triple Crown
1. Clásico José Antonio Páez, at Hipódromo La Rinconada in Caracas;
2. Clásico Cría Nacional (former Clásico Ministerio de Agricultura y Cría), at
Hipódromo La Rinconada in Caracas;
3. Clásico República de Venezuela (Venezuelan Derby), at Hipódromo La Rinconada
in Caracas;
Venezuelan Fillies' Triple Crown
1. Clásico Hipódromo La Rinconada, at Hipódromo La Rinconada in Caracas;
2. Clásico Prensa Hípica Nacional, at Hipódromo La Rinconada in Caracas;
3. Clásico General Joaquín Crespo, at Hipódromo La Rinconada in Caracas;
Venezuelan Official Triple Crown Champions: (From 1956)
| Year Winner Jockey Trainer Owner |
| 1960 Gradisco Manuel Camacaro Leopoldo Márquez Stud Rey-Gan |
| 1972 El Corsario José Luís Vargas Eduardo Azpúrua Stud El Corsario |
| 1985 Iraquí Juan Vicente Tovar (+) Daniel Pérez Stud Chivacoa |
| 1992 Catire Bello Douglas Valiente (+) Iván Calixto Stud Ilusión |
| 2005 Polo Grounds Emisael Jaramillo Carlos Regalado Stud Black Label |
| 2007 Taconeo Emisael Jaramillo Gustavo Delgado Stud Paula C |