Story, first published: Planet Stories, Aug 1944
Mr. Meek travels to Saturn's rings, gets himself drafted as a coach in a space polo match, bets his spaceship he can win the match (one of those impulsive acts of bravado when Meek gets angered), and then must play polo himself. Aided by some of Simak's whimsical aliens (bugs with advanced math skills), Meek wins.
Simak decided he had enough of Mr. Meek after two stories (he had only written them for his own amusement) and turned to more serious science fiction.
Ewald, Robert J.: When the Fires Burn High and the Wind is from the North, p.34