Coline Mattel started for Les Contamines Montjoie . At the age of eleven she made her debut in a Continental Cup show jumping test, in Schonach she was 37. Shortly afterwards, she took part in the Junior World Championships in Tarvisio and was 18. A year later she was only 31 in Zakopane . In between there were about half a dozen Continental Cup competitions in which she never got into the points. She won the first points as 16th in November 2008 at a summer competition in Oberstdorf . She won the first points in winter as the 25th in January 2008 in Schonach. Just ten days later Mattel achieved a single-digit result for the first time in eighth place in Toblach . She jumped to ninth place at the 2008 OPA games in Bois-d'Amont . At the Junior World Championships in 2009 in Štrbské Pleso , the French won the bronze medal behind Magdalena Schnurr and Anna Häfele . The Nordic World Ski Championships in Liberec in 2009 were also very successful , where Mattel achieved fifth place, after still being bronze after the first round. She won the gold medal at the 2009 OPA games in Baiersbronn . She won the silver medal at the 2010 Junior World Championships in Hinterzarten . At the beginning of 2011 she won the overall ranking of the FIS Ladies Grand Prix . In 2011 she won the gold medal at the Junior World Championship in Otepää, Estonia . She won the bronze medal at the Nordic World Ski Championships in Oslo in 2011 .
On December 3, 2011, she made her debut in the first women's World Cup in Lillehammer, Norway, and finished second. At the Junior World Championships 2012 in Erzurum , she was sixth in the individual and fifth in the team. In the 2012/13 World Cup season , she celebrated her first victory at the World Cup competition in Sochi with the same number of points as Daniela Iraschko . Her second World Cup victory was on February 2, 2013 in Sapporo, Japan . At the 2014 Winter Olympics , she won the bronze medal in the women's jumping event, which was held for the first time on the normal hill.