Colombia competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's sixteenth appearance at the Olympics, except the 1952 Summer Olympics in Helsinki. Comité Olímpico Colombiano sent the nation's largest delegation to the Games since 1972. A total of 53 athletes, 32 men and 21 women, took part in 18 sports. Ten Colombian athletes had previously competed in Sydney, including tennis player Fabiola Zuluaga in the women's singles, road cyclist Víctor Hugo Peña, and weightlifter Carmenza Delgado, who became the nation's flag bearer in the opening ceremony. Colombia left Athens with a total of two Olympic bronze medals, which were both awarded to weightlifter Mabel Mosquera, and track cyclist María Luisa Calle in the women's points race. Originally, Calle finished in the bronze medal position, but was later disqualified under a strict liability rule after she had been tested positive for the banned stimulant heptaminol, handing the medal over to U.S. cyclist Erin Mirabella. As a result of the International Olympic Committee's decision on November 23, 2005, the bronze medal was officially reinstated to Calle after this had been proven to be a false positive due to isometheptene presence in an analgesic prescribed during the competition. Medalists Athletics Colombian athletes have so far achieved qualifying standards in the following athletics events (up to a maximum of 3 athletes in each event at the 'A' Standard, and 1 at the 'B' Standard). Key Note–Ranks given for track events are within the athlete's heat only Q = Qualified for the next round q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target NR = National record N/A = Round not applicable for the event Bye = Athlete not required to compete in round Men Track & road events Women Track & road events Field events Boxing Colombia sent five boxers to Athens. Three lost their first matches, while two won once before being defeated. Juan Camilo Novoa was the most successful, as he made it to the quarterfinals after having a bye in his first round and winning his bout in the round of 16. Cycling Road Track Pursuit Time trial Omnium Diving Colombian divers qualified for two individual spots at the 2004 Olympic Games. Men Equestrian Dressage Fencing Colombia has qualified a single fencer. Women Gymnastics Artistic Men Judo Three