From horse + player.
horseplayer (plural horseplayers)
- (gambling) A person who bets on horse races.
2007 July 1, Vincent M. Mallozzi, “Handicapping the Handicappers”, in New York Times[1]:Trailing a field of talented horseplayers that day, he made a few shrewd picks to move ahead, then held on down the stretch to earn $50,000.
