From the mid-1940s to end of 1950s Robert Lemaire was one of Belgium's leading chess players.
In 1946, in Antwerp Robert Lemaire shared 1st – 2nd place with Albéric O'Kelly de Galway in Belgian Chess Championship but lost additional match for the title – 0:4.
[4] In 1955, in Merksem Robert Lemaire shared 1st – 3rd place in Belgian Chess Championship but ranked only 3rd in additional tournament for the title of champion (tournament won Jos Gobert).
[5][6] In 1960, in Ghent he shared 1st – 2nd place in this tournament but remained 2nd after the additional factor.
[7] Robert Lemaire played for Belgium in the Chess Olympiad:[8] Robert Lemaire played for Belgium in the Clare Benedict Cup:[9] This biographical article relating to a Belgian chess figure is a stub.