The Open class was a sailing event on the Sailing at the 1900 Summer Olympics program in Meulan. All boats intended to compete in other races of the Meulan program were supposed to compete in the Concours d'Honneur. It was held on 20 May 1900. About seventy–eight sailors, on about forty–seven boats, from six nations competing. The latest finishing time was at 19:00 hours. Only seven boats made it to the finish in time.