Argentina on Tuesday won their first-ever Olympic cycling medal when they won men's madison race at the Beijing Olympics ahead of Spain, while Britain's Chris Hoy and Victoria Pendleton took the sprint titles, dpa reported.
In the madison race, Juan Esteban Curuchet and Walter Fernando Perez beat Joan Llaneras and Antonio Tauler into second place by just a single point. The South Americans finished on eight points.
The bronze medal was won by Russians Mikhael Ignatyev and Alexei Markov with six points, who were the only other team not to be a lap behind.
In the madison race teams consisting of two riders compete against each other in a race over a distance of 50km. The final placing is determined by points accumulated during periodic sprints, with 20 points being deducted for a lap lost on the leaders.
Hoy, who already has won gold in the men's team sprint, as well as the men's kerin and a gold from Athens in the 1km time trial, proved too strong for his compatriot Jason Kenny, who had to be content with silver in the men's sprint.
The victory sees world champion Hoy become the all-time leading cyclist at the Olympics with four gold medals and a silver. The bronze was won by France's Mickael Bourgain.
Pendleton won the women's sprint gold medal in the final against Australian Anna Meares. China's Guo Shuang, who lost her semi-final against Meares in the third race in a photo-finish, took the bronze.