- Bats Right, Throws Right
- Height 5' 10", Weight 220 lb.
Mallet was 0 for 5 for New Caledonia in the 2003 South Pacific Games. He was 2 for 16 with a walk and two times hit by pitch for the 2005 Savigny-sur-Orge Lions in the 2005 Division Elite. In '06, he hit .204/.348/.259 and pitched briefly (11 R, 6 ER in 4 2/3 IP). He moved to the Toulouse Tigers in 2007, batting .213/.372/.280. He won Silver with New Caledonia in the 2007 South Pacific Games.
Brieuc moved from the outfield to first base with Toulouse in 2008. He hit .252/.430/.393. He was second in the league in times hit by pitch, behind Ianis Bouteloup. He batted .263/.451/.395 in 2009, missing the top 10 in OBP by .004 behind Mathieu Brau (he also did not play enough to qualify, only appearing in 13 games that year). He hit .260/.328/.404 in 2010. He saw limited time in '11, batting .226/.478/.290 with 12 walks in 10 games, as he spent part of the Year with Theford Mines in the Ligue de Baseball Majeur de Quebec (.154).
Mallet produced at a .400/.455/.550 clip for New Caledonia in the 2011 Pacific Games, leading the team in hits (8), doubles (3), average (.050 ahead of Remi Couarraze), OBP (.020 ahead of Couarraze) and slugging (.121 ahead of Jacques Boucheron). He tied Jim Reyes for 5th in the Games in average, was 5th in OBP, ranked 5th in slugging, was 6th in hits, tied Byron Kaipat for 2nd in doubles and tied Melngis Uchel and Reyes for 3rd in total bases (11, 4 behind Rico Castro and Juan Maratita).
In 2012, he hit .280/.486/.400 in 8 games for Toulouse, followed by .211/.297/.311 in a regular role in 2013. He switched to the Beaucaire Chevaliers in 2014 and made big strides at .355/.445/.462, while catching regularly. He was 11th in the league in runs, 5th in runs (between Larry Infante and Florian Peyrichou) and 2nd with 8 times plunked (two behind Will Musson).
He hit .353/.488/.441 in 11 games for the '15 Chevaliers then moved to La Vallée du Gapeau Renards in the French minors.
He also has worked as a railway engineer.