Trésarrieu was born in Bordeaux in 1986, and took up speedway at the age of twelve."2011 Rider Index", speedwaygb.co, retrieved 2011-11-26"Mathieu Trésarrieu", peterboroughpanthers.co, retrieved 2011-11-26 His two older brothers Stéphane and Sebastien are also speedway riders. He won the French national championship for the first time in 2002. Between 2002 and 2003 he rode for the Isle of Wight Islanders in seven matches, but only got a regular league place in 2005 when he rode in forty matches for Reading Racers at an average score of 5.6.
