Pierre Ragues began his career in karting and remained this form of motorsport to date professionally connected. His first kart races he competed in 2000 in the South Garda Winter Cup and drove 2009 or in the CIK - FIA World Cup.
Since 2003 Ragues also drives car racing. For three years he was engaged in the French Formula Renault Championship, where he was in 2003 second in the overall standings. In 2006, he rose from the single-seaters to sports cars by. He made his debut in the Le Mans Series and the 24 Hours of Le Mans. For the team of former Formula 1 driver Paul Belmondo he went on his debut in Le Mans Courage C65 one, but dropped out prematurely. 2007 Ragues had a short stint in the Formula racing when he went for the team euros Nova Racing in the International Formula Master at the start. There he reached the podium and finished the season on top of the 14 championship course.
For the 2008 season Ragues returned to sports car racing in the Le Mans Series, where he is now a Pescarolo 01 of Saulnier Racing drove. With his teammate Mathieu Lahaye he celebrated a podium finish in the LMP2 class and finished the season in fifth place in the drivers' championship in its class. At Le Mans, he also was able to record his first finish. 2009 he moved to Signature-Plus, and thus also in the "big " Prototype LMP1 class. Against stronger competition here though he could never fight for the podium, but he steered with his teammate Franck Mailleux Courage - Oreca LC70 in the points, so that he was regularly at the end of the season in tenth championship course. In the same year he achieved his best ever finish at the endurance race at the Sarthe, which he was able to finish in eleventh place overall. 2010 Ragues switched to a Lola - Aston Martin LMP1.
For the 2011 season, he moved to OAK Racing and drove there a Pescarolo 01 The first placement of the year he reached the fifth overall at the 6- hour race at Silverstone.