The Prix Isonomy is a Listed

Conditions races

Conditions races are horse races where the weights carried by the runners are laid down by the conditions attached to the race. Weights are allocated according to; the sex of the runners, with female runners carrying less weight than males; the age of the runners, with younger horses receiving...

 flat

Flat racing

Flat racing is a form of Thoroughbred horse racing which is run over a level track at a predetermined distance. It differs from steeplechase racing which is run over hurdles...

 horse race

Horse racing

Horse racing is an equestrian sport that has a long history. Archaeological records indicate that horse racing occurred in ancient Babylon, Syria, and Egypt. Both chariot and mounted horse racing were events in the ancient Greek Olympics by 648 BC...

 in France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 which is open to two-year-old thoroughbred

Thoroughbred

The Thoroughbred is a horse breed best known for its use in horse racing. Although the word thoroughbred is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed...

s. It is run at Saint-Cloud

Saint-Cloud Racecourse

Hippodrome de Saint-Cloud is a grass race course for Thoroughbred flat horse racing opened in 1901 at 1 rue du Camp Canadien in Saint-Cloud near Paris, France...

 over a distance of 1,600 metres (about 1 mile), and it is scheduled to take place each year in late November.

History

The event is named after Isonomy, a successful racehorse in the late 19th century. It was formerly held at Évry, and it used to take place in late October or early November. For a time it was contested over a length of 2,000 metres, and this was shortened to 1,800 metres in 1990. It was run at Saint-Cloud over 1,600 metres in 1996, and at Longchamp over 1,800 metres for the following two years.

The Prix Isonomy was restored to 1,600 metres in 1999, and since then it has been staged at various venues. There were brief periods at Maisons-Laffitte

Maisons-Laffitte Racecourse

The Hippodrome de Maisons-Laffitte at 1 avenue de la Pelouse in the northwestern Parisian suburb of Maisons-Laffitte in France is a turf horse racing facility and track for Thoroughbred flat racing...

 (1999–2000), Saint-Cloud (2001–02) and Fontainebleau

Fontainebleau

Fontainebleau is a commune in the metropolitan area of Paris, France. It is located south-southeast of the centre of Paris. Fontainebleau is a sub-prefecture of the Seine-et-Marne department, and it is the seat of the arrondissement of Fontainebleau...

 (2003–04), and it began its current spell at Saint-Cloud in 2005. The race is now usually scheduled for late November.

Records

Leading jockey

Jockey

A jockey is an athlete who rides horses in horse racing or steeplechase racing, primarily as a profession. The word also applies to camel riders in camel racing.-Etymology:...

 since 1979 (4 wins):

• Cash Asmussen
  Cash Asmussen
  Cash Asmussen is an American thoroughbred horse racing jockey. Born Brian Keith Asmussen, in 1977 he legally changed his name to "Cash". From a Texas horse racing family, his parents, Keith and Marilyn "Sis" Asmussen, operate a ranch in Laredo, Texas...
  
   – Ask the Wind (1982), Juba Dollar (1985), Montjeu (1998), Domedriver (2000)
• Thierry Jarnet
  Thierry Jarnet
  Thierry Jarnet Is a Champion Thoroughbred Flat racing Jockey in France. Winning the title 4 times from 1992 to 1995. Jarnet was first apprenticed to Patrick Rago atMaisons-Laffitte and then to Yann Porzier at Chantilly, Oise....
  
   – Subotica (1990), Mon Domino (1991), Sin Kiang (1992), Supreme Commander (1995)

----
Leading trainer

Horse trainer

In horse racing, a trainer prepares a horse for races, with responsibility for exercising it, getting it race-ready and determining which races it should enter...

 since 1979 (4 wins):

• David Smaga – Jazz Band (1979), Arneda (1983), Avaleur (1986), Peckinpah's Soul (1994)

----
Leading owner since 1979:

• no owner has won this race more than once since 1979

Winners since 1979

Year	Winner	Jockey	Trainer	Owner	Time
1979	Jazz Band	Alain Lequeux Alain Lequeux Alain Lequeux was one of France's leading jockeys in the 1970s and 1980s. He won 33 Group or Grade 1 races, including the 1981 Washington, D.C. International Stakes aboard Providential for trainer Charlie Whittingham. Son of leading French rider Guy Lequeux, he won more than 2,000 races while...	David Smaga	Mrs Gérard Aoudai
1980	Daumont	Yves Saint-Martin Yves Saint-Martin Yves Saint-Martin is a retired champion jockey in French Thoroughbred horse racing. He is widely considered one of the greatest riders in French racing history....	Joseph Audon	Giancarlo Gorrini
1981	Flayosc	Antoine Perrotta	Gérard Philippeau	André Chollou
1982	Ask the Wind	Cash Asmussen Cash Asmussen Cash Asmussen is an American thoroughbred horse racing jockey. Born Brian Keith Asmussen, in 1977 he legally changed his name to "Cash". From a Texas horse racing family, his parents, Keith and Marilyn "Sis" Asmussen, operate a ranch in Laredo, Texas...	François Boutin François Boutin François Boutin was a French Thoroughbred horse trainer. The son of a farmer, he was born in the village of Beaunay in the northerly Seine Maritime département. He began riding horses at a young age and competed in show jumping and cross-country equestrianism...	Diana Firestone
1983	Arneda	Freddy Head Freddy Head Freddy Head is a retired champion jockey in Thoroughbred horse racing and currently a horse trainer. Known also as "Freddie", his grandfather was a jockey as was his father Alec Head who also became a successful trainer and owner of Haras du Quesnay near Deauville...	David Smaga	Xavier Beau
1984	Premier Role	Maurice Philipperon Maurice Philipperon Maurice Philipperon is a noted French jockey who after retirement became president of the French jockeys' association.His winning rides in Gr. 1 and 2 races included:* the Prix Ganay in 1970, 1971 and 1980 on Grandier, Caro and Arctic Tern....	John Cunnington, Jr.	Paul de Moussac
1985	Juba Dollar	Cash Asmussen Cash Asmussen Cash Asmussen is an American thoroughbred horse racing jockey. Born Brian Keith Asmussen, in 1977 he legally changed his name to "Cash". From a Texas horse racing family, his parents, Keith and Marilyn "Sis" Asmussen, operate a ranch in Laredo, Texas...	François Boutin François Boutin François Boutin was a French Thoroughbred horse trainer. The son of a farmer, he was born in the village of Beaunay in the northerly Seine Maritime département. He began riding horses at a young age and competed in show jumping and cross-country equestrianism...	Stavros Niarchos Stavros Niarchos Stavros Spyros Niarchos was a Greek shipping tycoon, sometimes known as "The Golden Greek." In 1952, Stavros Niarchos built the first supertankers capable of transporting large quantities of oil, and subsequently earned millions of dollars as global demand for his ships increased.- Early life :He...
1986	Avaleur	Alain Lequeux Alain Lequeux Alain Lequeux was one of France's leading jockeys in the 1970s and 1980s. He won 33 Group or Grade 1 races, including the 1981 Washington, D.C. International Stakes aboard Providential for trainer Charlie Whittingham. Son of leading French rider Guy Lequeux, he won more than 2,000 races while...	David Smaga	Ecurie Seutet
1987	Waki River	Alain Lequeux Alain Lequeux Alain Lequeux was one of France's leading jockeys in the 1970s and 1980s. He won 33 Group or Grade 1 races, including the 1981 Washington, D.C. International Stakes aboard Providential for trainer Charlie Whittingham. Son of leading French rider Guy Lequeux, he won more than 2,000 races while...	Bernard Sécly Bernard Secly Bernard Secly is a horse trainer in Thoroughbred flat racing and most notably in steeplechase racing.Secly won five Group One flat races but is best known for his conditioning two French Horse Racing Hall of Fame steeplechase horses, Katko and Al Capone II.-External links:*...	Jacki Clérico
1988	Plein d'Esprit	Gérald Mossé Gérald Mossé Gérald Mossé is a jockey in thoroughbred horse racing. He began riding professionally in April 1983 and his success during his apprenticeship under Patrick-Louis Biancone led to an offer to ride for renowned trainer François Boutin and his stable of horses belonging to Jean-Luc Lagardère...	Elie Lellouche Elie Lellouche Elie Lellouche is a French trainer of Thoroughbred racehorses and jockeys.After having modest success as a jockey, in 1979 Lellouche obtained his horse trainer's license...	Fernand Krief
1989	Noble Ballerina	Eric Legrix Eric Legrix Eric Legrix is a French jockey who has won many races, including the Breeders' Cup Turf, the Hong Kong Derby, the Queen Elizabeth II Cup and the Prix du Cadran....	Dominique Sépulchre	Sir Gordon White Gordon White, Baron White of Hull Gordon Lindsay White, Baron White of Hull, KBE died in Los Angeles aged 72. He left most of his £70m fortune to his son Lucas...
1990	Subotica Subotica (horse) Subotica is a French Thoroughbred racehorse. He was bred by Paul de Moussac at his Haras du Mezeray in Lower Normandy. Through his sire Pampabird, owned by de Moussac, Subotica is a descendant of the great Nearco...	Thierry Jarnet Thierry Jarnet Thierry Jarnet Is a Champion Thoroughbred Flat racing Jockey in France. Winning the title 4 times from 1992 to 1995. Jarnet was first apprenticed to Patrick Rago atMaisons-Laffitte and then to Yann Porzier at Chantilly, Oise....	André Fabre André Fabre André Fabre is a French thoroughbred horse racing trainer.The son of a diplomat, Fabre graduated from university with a law degree but then decided to pursue a career in thoroughbred horse racing. He began by working in the stables as a groom then as a schooling rider...	Ecurie Demgalop
1991	Mon Domino	Thierry Jarnet Thierry Jarnet Thierry Jarnet Is a Champion Thoroughbred Flat racing Jockey in France. Winning the title 4 times from 1992 to 1995. Jarnet was first apprenticed to Patrick Rago atMaisons-Laffitte and then to Yann Porzier at Chantilly, Oise....	Robert Collet Robert Collet Robert Collet is a French thoroughbred racehorse trainer.Robert Collet was one of the first European trainers to win a Breeders' Cup race when he won the 1986 edition of the Breeders' Cup Mile at Hollywood Park Racetrack with Last Tycoon...	Henri Chalhoub
1992	Sin Kiang	Thierry Jarnet Thierry Jarnet Thierry Jarnet Is a Champion Thoroughbred Flat racing Jockey in France. Winning the title 4 times from 1992 to 1995. Jarnet was first apprenticed to Patrick Rago atMaisons-Laffitte and then to Yann Porzier at Chantilly, Oise....	André Fabre André Fabre André Fabre is a French thoroughbred horse racing trainer.The son of a diplomat, Fabre graduated from university with a law degree but then decided to pursue a career in thoroughbred horse racing. He began by working in the stables as a groom then as a schooling rider...	Y. Seydoux de Clausonne	2:07.56
1993	Red Rubin	Thierry Gillet Thierry Gillet Thierry Gillet is a top French jockey who won the 2004 Prix de l'Arc de Triomphe aboard Bago, a thoroughbred race horse he has ridden in 14 of his career starts. In April 2009, at age 39, Gillet announced his retirement from racing, citing recurring weight problems...	Tony Clout	Serge Plot	2:04.67
1994	Peckinpah's Soul	Pascal Marion	David Smaga	Ecurie Leader	2:06.66
1995	Supreme Commander	Thierry Jarnet Thierry Jarnet Thierry Jarnet Is a Champion Thoroughbred Flat racing Jockey in France. Winning the title 4 times from 1992 to 1995. Jarnet was first apprenticed to Patrick Rago atMaisons-Laffitte and then to Yann Porzier at Chantilly, Oise....	André Fabre André Fabre André Fabre is a French thoroughbred horse racing trainer.The son of a diplomat, Fabre graduated from university with a law degree but then decided to pursue a career in thoroughbred horse racing. He began by working in the stables as a groom then as a schooling rider...	Wafic Saïd Wafic Saïd Wafic Rida Saïd is a Syrian-Saudi Arabian businessman living in Monaco and Paris.-Personal life:Saïd married British born Ann Rosemary Thompson in 1969...	2:01.44
1996	Film Noir	Olivier Doleuze Olivier Doleuze Olivier Doleuze is a French born jockey and is considered to be one of the world's premier jockeys. Doleuze began riding at the age of 14, and currently has over 700 career wins.-Major wins: France...	Criquette Head Criquette Head-Maarek Christiane "Criquette" Head is considered to be the leading female racehorse trainer in the world.Known as Criquette, she was born into the Thoroughbred horse racing business...	Wertheimer et Frère Wertheimer et Frère Wertheimer et Frère is a Thoroughbred horse racing and breeding business partnership between brothers Alain and Gerard Wertheimer of France.The Wertheimer brothers are the owners of the House of Chanel in Paris...	1:45.00
1997	Quel Senor	Dominique Boeuf Dominique Boeuf Dominique Boeuf is a jockey in Thoroughbred flat racing. He began his career while still a teen and won his first race on 15 September 1984. Three years later, he got his first Group One win aboard Groom Dancer in the 1987 Prix Lupin...	François Doumen François Doumen François Doumen is a French racehorse trainer currently based at Boucé, Orne. From 1956 to 1970 he was an amateur jockey, and he then worked as an assistant trainer to his father Jean. He obtained his own training licence in 1977....	John D. Martin	2:00.70
1998	Montjeu Montjeu Montjeu , is a thoroughbred horse racing World Champion colt and sire of champions. Sired by Sadler's Wells from the dam Floripedes, Montjeu is a grandson of Northern Dancer....	Cash Asmussen Cash Asmussen Cash Asmussen is an American thoroughbred horse racing jockey. Born Brian Keith Asmussen, in 1977 he legally changed his name to "Cash". From a Texas horse racing family, his parents, Keith and Marilyn "Sis" Asmussen, operate a ranch in Laredo, Texas...	John Hammond John E. Hammond John E. Hammond is a Thoroughbred horse trainer in France.Based in Chantilly, Oise, Hammond has trained numerous Group One winners including Montjeu and Suave Dancer both of whom won the Prix de l'Arc de Triomphe, France's most prestigious horse race...	Tsega Ltd	2:01.70
1999	Loyal Tartare	Davy Bonilla Davy Bonilla -Major wins: France* Prix de l'Abbaye de Longchamp - - Marchand d'Or * Prix du Cadran - - San Sebastian * Prix d'Ispahan - - Laverock * Prix Jacques Le Marois - - Tamayuz ...	Elie Lellouche Elie Lellouche Elie Lellouche is a French trainer of Thoroughbred racehorses and jockeys.After having modest success as a jockey, in 1979 Lellouche obtained his horse trainer's license...	Olivier Meyer	1:42.70
2000	Domedriver Domedriver Domedriver is a Thoroughbred racehorse owned and raced in France by the Stavros Niarchos family. Out of the mare, Napoli, his sire was Indian Ridge who also sired Breeders' Cup winner and 1995 European Horse of the Year, Ridgewood Pearl and Relaxed Gesture, winner of the $2 million Canadian...	Cash Asmussen Cash Asmussen Cash Asmussen is an American thoroughbred horse racing jockey. Born Brian Keith Asmussen, in 1977 he legally changed his name to "Cash". From a Texas horse racing family, his parents, Keith and Marilyn "Sis" Asmussen, operate a ranch in Laredo, Texas...	Pascal Bary Pascal Bary Pascal Bary is a French racehorse trainer.He has been training since 1981, having previously worked as an assistant to François Boutin...	Niarchos Family Stavros Niarchos Stavros Spyros Niarchos was a Greek shipping tycoon, sometimes known as "The Golden Greek." In 1952, Stavros Niarchos built the first supertankers capable of transporting large quantities of oil, and subsequently earned millions of dollars as global demand for his ships increased.- Early life :He...	1:45.70
2001	King Solomon	Christophe Soumillon Christophe Soumillon Christophe Soumillon is a Belgian Thoroughbred horse racing jockey.-Career:Raised in a horse racing family, he is the son of a horse jumping jockey Jean-Marc Soumillon. Christophe Soumillon apprenticed at Chantilly Racecourse in Chantilly, France to Cédric Boutin, and won his first race in...	Paul Cole Paul Cole Paul F. I. Cole is a British racehorse trainer. Since 1987 he has been based at Whatcombe Estate in Oxfordshire, the former stables of Dick Dawson and Arthur Budgett....	Blenheim Partnership	1:48.00
2002	Vallee Enchantee Vallée Enchantée Vallée Enchantée is a retired thoroughbred racehorse bred in Ireland and trained in France. She won Hong Kong Vase and two group race in 2003. She is a very small along other thoroughbreds. Her weight only 813 ponds when she won Hong Kong Vase.- References :*Racing stats at *...	Dominique Boeuf Dominique Boeuf Dominique Boeuf is a jockey in Thoroughbred flat racing. He began his career while still a teen and won his first race on 15 September 1984. Three years later, he got his first Group One win aboard Groom Dancer in the 1987 Prix Lupin...	Elie Lellouche Elie Lellouche Elie Lellouche is a French trainer of Thoroughbred racehorses and jockeys.After having modest success as a jockey, in 1979 Lellouche obtained his horse trainer's license...	Ecurie Wildenstein	1:56.30
2003	Millemix	Ronan Thomas	Criquette Head-Maarek Criquette Head-Maarek Christiane "Criquette" Head is considered to be the leading female racehorse trainer in the world.Known as Criquette, she was born into the Thoroughbred horse racing business...	Alec Head Alec Head Alec Head was a prominent French horseman and breeder and the owner of Haras du Quesnay near Deauville. A descendant of the great trainers who founded the English Racing Colony in Chantilly, Oise, Head's grandfather was a jockey-turned-trainer, as was his father William Head who was a very...	1:49.00
2004	Relais d'Aumale	Stéphane Pasquier Stéphane Pasquier Stéphane Pasquier in Paris, France, is a flat racing jockey. In October 2006, he won the 85th Prix de l'Arc de Triomphe....	Mario Hofer	Stall Equie Celli	1:46.40
2005	Hello Sunday	Ronan Thomas	Criquette Head-Maarek Criquette Head-Maarek Christiane "Criquette" Head is considered to be the leading female racehorse trainer in the world.Known as Criquette, she was born into the Thoroughbred horse racing business...	Jean-Pierre Ribes	1:56.80
2006	Anabaa's Creation	Stéphane Pasquier Stéphane Pasquier Stéphane Pasquier in Paris, France, is a flat racing jockey. In October 2006, he won the 85th Prix de l'Arc de Triomphe....	Alain de Royer-Dupré Alain de Royer-Dupré Alain de Royer-Dupré is a leading French thoroughbred racehorse trainer. He grew up at the Haras de Saint Lô, a national stud farm in Normandy of which his father was Assistant Director and later Director, responsible for government-owned stallions based at farms in the local...	William J. Preston	1:48.30
2007	Vadsalina	Stéphane Pasquier Stéphane Pasquier Stéphane Pasquier in Paris, France, is a flat racing jockey. In October 2006, he won the 85th Prix de l'Arc de Triomphe....	Alain de Royer-Dupré Alain de Royer-Dupré Alain de Royer-Dupré is a leading French thoroughbred racehorse trainer. He grew up at the Haras de Saint Lô, a national stud farm in Normandy of which his father was Assistant Director and later Director, responsible for government-owned stallions based at farms in the local...	HH Aga Khan IV Aga Khan IV Prince Karim, Aga Khan IV, NPk, NI, KBE, CC, GCC, GCIH, GCM is the 49th and current Imam of the Shia Imami Nizari Ismaili Muslims. He has held this position under the title of Aga Khan since July 11, 1957, when, at the age of 20, he succeeded his grandfather, Sultan Mahomed Shah Aga Khan...	1:50.40
2008	Entre Deux Eaux	Ioritz Mendizabal	Robert Collet Robert Collet Robert Collet is a French thoroughbred racehorse trainer.Robert Collet was one of the first European trainers to win a Breeders' Cup race when he won the 1986 edition of the Breeders' Cup Mile at Hollywood Park Racetrack with Last Tycoon...	Jesus / Vidal	1:49.20
2009	No Risk at All	Ioritz Mendizabal	Jean-Paul Gallorini	Sylvia Wildenstein Daniel Wildenstein Daniel Leopold Wildenstein was a French art dealer and scholar, as well as a leading thoroughbred race horse owner and breeder....	1:54.00
2010	Whip and Win	Gregory Benoist	Robert Collet Robert Collet Robert Collet is a French thoroughbred racehorse trainer.Robert Collet was one of the first European trainers to win a Breeders' Cup race when he won the 1986 edition of the Breeders' Cup Mile at Hollywood Park Racetrack with Last Tycoon...	Wingtans / Vidal	1:54.5