He started his playing career at Rugby Club Revelois. Labit later joined Castres Olympique where he won the 1992–93 French Rugby Union Championship at the Parc des Princes against Grenoble by beating them 14-11 in the final, in a match decided by an irregular try accorded by the referee. A try by Olivier Brouzet is denied to FC Grenoble
and the decisive try by Gary Whetton was awarded by the referee, Daniel Salles, when in fact the defender Hueber from Grenoble touched down the ball first in his try zone. This error gave the title to Castres. Salles admitted the error only 13 years later.[2]
Labit's coaching career started at US Montauban in 2004, where he helped them get promoted into the Top 14 in the 2006 season together with Laurent Travers.[citation needed] At the end of the 2008-2009 season, Labit joined Olympic Castres with Laurent Travers and in the 2012 - 2013 season, both coaches lead the club to win the Top 14 Championship[citation needed] after which both Labit and Travers where recruited by Racing Métro, now known as Racing 92, for the 2013 - 2014 Top 14 season, Racing Metro managed to get the semi-finals before being eliminated from the tournament.[3]