- 2.2.1 Siege
With nine years Capdeville began playing tennis at the oldest and most famous club of his birth city of Santiago de Chile, where his father Guillermo was also a member. His older brother William, who coached early with him, is now his manager.
In 2003 he moved for the first time in the finals of a tournament Future after him three times to qualify for these events was succeeded in 2002.
A year later the premiere followed on the ATP Tour in Viña del Mar. The tournament was for him but after the first round against his compatriot Adrián García finished. In 2004 he made his debut also for Chile in the Davis Cup against Ecuador.
The year 2005 he finished as number 134 in the world rankings with a successful individual stats by 27:19 at Challenger tournaments. He won the tournament in Bogotá, reached the final in Sassuolo and the semi-finals in Ljubljana and Lugano. In addition, he qualified in August at the U.S. Open and reached after a victory over Paul -Henri Mathieu the second round, where he clearly lost in three sets to Fernando Verdasco.
In 2007 he managed with an ATP record of 13:12 in the individual first made it into the top 100 in the world rankings. In addition to his Challengertitel in Florianópolis, he managed to qualify for the ATP tournament in Washington, where he was eliminated in the tie-break of the third set against Ivo Karlović. He started as a qualifier at the U.S. Open in August and defeated there in the first round Rainer Schuettler in five sets. Thereafter, however, followed the opposite from the set at 1 Roger Federer.