 Standings at start of day | Results for June 6, 1888 Game 105: Kansas City 9, Chicago 7 |
| Game 105: Kansas City @ Chicago Kansas City 9, Chicago 7 Chicago Tribune  | Game 106: Omaha @ Milwaukee Milwaukee 3, Omaha 2 Milwaukee Sentinel  | Game 107: Des Moines @ Minneapolis Des Moines 13, Minneapolis 3 St. Paul Globe  | Game 108: St. Louis @ St. Paul St. Louis 8, St. Paul 2 St. Paul Globe  |