He won a total number of four European titles in long course, starting from 1991. Esposito broke the world record in the 200 m butterfly (short course) four times.
At the 1991 World Championships, he lowered the French Record in the long course 200 Fly for the first time (1:59.00). He subsequently bettered the record six more times, and as of 2013 still holds the record at 1:54.62 which he swam at the 2002 French Championships (at the time, also a European Record).[3] He also held the French Record in the long course 100 fly from August 1993 – April 2008.[4]
World Record holder Men's 200m Butterfly (25m) 1 February 1992 – 6 February 1993 26 March 1994 – 2 February 1997 14 January 2001 – 1 December 2001 8 December 2002 – 13 December 2008