Walk-over

from The Collaborative International Dictionary of English v.0.48

Walk-over \Walk"-o`ver\, n.
   In racing, the going over a course by a horse which has no
   competitor for the prize.
   [1913 Webster]

   2. Hence: (colloquially) A one-sided contest; an uncontested,
      or an easy, victory.

   Syn: walk; cake-walk.
        [1913 Webster +PJC]