Juan Luis Sainfleur Hernández (born February 17, 1982) is a sprinter from the Dominican Republic

Dominican Republic

The Dominican Republic is a nation on the island of La Hispaniola, part of the Greater Antilles archipelago in the Caribbean region. The western third of the island is occupied by the nation of Haiti, making Hispaniola one of two Caribbean islands that are shared by two countries...

 specializing in the 100 metres

100 metres

The 100 metres, or 100-metre dash, is a sprint race in track and field competitions. The shortest common outdoor running distance, it is one of the most popular and prestigious events in the sport of athletics. It has been contested at the Summer Olympics since 1896...

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He won a bronze medal at the 2004 Ibero-American Championships. Participating in the 2004 Summer Olympics

2004 Summer Olympics

The 2004 Summer Olympic Games, officially known as the Games of the XXVIII Olympiad, was a premier international multi-sport event held in Athens, Greece from August 13 to August 29, 2004 with the motto Welcome Home. 10,625 athletes competed, some 600 more than expected, accompanied by 5,501 team...

, he failed to finish in his 100 metre heat

Athletics at the 2004 Summer Olympics - Men's 100 metres

The men's 100 metres was of one of 23 track events of the athletics at the 2004 Summer Olympics, in Athens. It was contested at the Athens Olympic Stadium, from August 21 to August 22, by a total of 84 sprinters from 63 nations....

, thus failing to make it through to the second round. He also participated at the 2005 World Championships

2005 World Championships in Athletics - Men's 100 metres

The men's 100 metres at the 2005 World Championships in Athletics was held at the Helsinki Olympic Stadium on August 6 and August 7.The top three runners in each of the initial 8 heats automatically qualified for the second round. The next ten fastest runners from across the heats also qualified...

, exiting in the quarter finals.

He finished fifth at the 2006 Central American and Caribbean Games

Athletics at the 2006 Central American and Caribbean Games

The athletics competition at the 2006 Central American and Caribbean Games took place at the Estadio Pedro de Heredia in Cartagena, Colombia and lasted from July 25 to July 29. There were 23 events for men and 21 for women...

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His personal best time is 10.22 seconds, achieved in May 2004 in Santo Domingo

Santo Domingo

Santo Domingo, known officially as Santo Domingo de Guzmán, is the capital and largest city in the Dominican Republic. Its metropolitan population was 2,084,852 in 2003, and estimated at 3,294,385 in 2010. The city is located on the Caribbean Sea, at the mouth of the Ozama River...

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