Abstract: A race horse selector includes three discs mounted on a common pivot pin behind a cover disc. Different sized discs are used to expose the outer margins. The margins are divided into equal sectors and numbers 1-12 randomly distributed thereon. The cover member has four spaced openings, one spanning all three discs to identify the win, place and show horses, and/or a Trifector race selection, an opposite one spanning the two outer discs to identify a Quinella or Perfecta race selection and two intermediate openings exposing the smallest and largest discs to identify the second half of a Daily Double and other selections. A locating tab on each disc extends radially outwardly of the cover disc with an outer clamp member extended back over or into the cover disc. Locating indicia on the back permits positioning the tabs such that a number sector is aligned within the openings, without viewing the openings.