Lastras won at stage in the 2003 Tour de France and picked up two stages in the 2002 Vuelta a España. In 2005 he won stage 8 at Tour de Suisse. He also won the Vuelta a Burgos in 2003. His idols are Bernard Hinault and Migual Indurain. He has a resting heart rate of 45bpm, and is 1.84m tall weighs 66kg. In 2007 the team Caisse d'Epargne have announced his fired but after a stage win in Eneco Tour he renewed the contract for another year. Lastras have repaid the trust with the success in overall classification in Vuelta a Andalucia and the second place Giro d'Italia stage after a long and wet escape.