The Letter Review Prize is a regular writing competition split into the following categories: Short Fiction, Poetry, Nonfiction, Books and Art. It offers cash prizes and publication to the winners. You can access previous winners on the Letter Review site to give you an idea of what floats their boat.
The Poetry Prize is open to anyone in the world but the entry must not have been traditionally published. The competition is open to all varieties of poetry and there are no style or subject restrictions.