  We study the existence of ample uniruled divisors on irreducible holomorphic
symplectic manifolds that are deformation of the ten dimensional example
introduced by O'Grady. In particular, we show that for any polarized OG10
manifold lying in four specific connected components of the moduli space of
polarized OG10 manifolds there exists a multiple of the polarization that is
the class of a uniruled divisor.
