More Than Somewhat (1937). This quotation is associated with Runyon, but the Chicago Tribune, 10 May 1936, printed the following: "'The race is not always to the swift, nor the battle to the strong, but that is the way to bet,' as Hugh Keough used to say." Keough was a Chicago journalist.
George Washington (1847). “The Writings of George Washington: pt. II. Correspondence and miscellaneous papers relating to the American revolution: (v. 3) June, 1775-July, 1776. (v. 4) July, 1776-July] 1777. (v. 5) July, 1777-July, 1778. (v. 6) July, 1778-March, 1780. (v. 7) March, 1780-April, 1781. (v. 8) April, 1781-December, 1783”, p.374