Dallas Schmidt recently had his first Top Ten finish in a National Reining Horse Association competition.
He, his wife and their one-year-old were staying at a Columbus, Ohio, hotel.
He says he pulled his boots back on to get a baby bottle from the truck.
Schmidt says two would-be muggers approached from behind and demanded his money.
As one of the men moved closer, Schmidt says he got him in the face a with back-kick - spurs and all.
He tells the Grand Forks, N.D. Herald he never thought of his spurs as self-defense weapons.
Police are still looking for the muggers.