The invention relates to a free-standing post comprising stabilizer means for stabilizing it on the ground, a non-rigid element for holding an article, which element extends upwards over a height H and has a bottom portion extended by a top portion. First anchor means are arranged between the stabilizer means and the bottom portion. In addition, a flexible longitudinal element is of length greater than the height H of the non-rigid element. Second anchor means are arranged between the bottom end of the flexible longitudinal element and the stabilizer means. Third anchor means are arranged between the top end of the flexible longitudinal element and the top end of the top portion of said non-rigid element. The invention also relates to a sport game set equipped with at least one such free-standing post.