Lacourt collected three gold medal at the European Championships. He became European Champion in the 100 m backstroke (long course) ahead of compatriot Jérémy Stravius in a time of 52.11. This time was a new European record and the second fastest time ever, second to Aaron Peirsol's 51.94 from 2009. He collected the 50 m backstroke title in a time of 24.07, also bumping him up to the second fastest performer of all time in that event. On the final night, he collected gold in the 4 × 100 m medley relay.