By 1946, when Kerouac was 24, he had devised a set of cards with precise verbal descriptions of various outcomes (“slow roller to ss,” for example), depending on the skill levels of the pitcher and batter. The game could be played using cards alone, but Mr. Gewirtz thinks that more often Kerouac determined the result of a pitch by tossing some sort of projectile at a diagrammed chart on the wall.
The author of On the Road also played, and wrote breathless accounts of, fantasy horse races.
The horse-racing game was played by rolling marbles and a silver ball bearing down a tilted Parcheesi board, using a starting gate made of toothpicks. Apparently, the ball bearing traveled faster than the marbles, some of which were intentionally nicked to indicate equine fragility and mortality. So the ball bearing became the nearly invincible horse Repulsion, “King of the Turf,” whose legendary speed and stamina are celebrated in Kerouac’s racing sheets.