 Standings at start of day | Results for July 7, 1888 Game 188: Sioux City 1, Milwaukee 0 |
| Game 188: Sioux City @ Milwaukee Sioux City 1, Milwaukee 0 Milwaukee Sentinel  | Game 189: Kansas City @ Minneapolis Minneapolis 7, Kansas City 3 Minneapolis Star Tribune  | Game 190: Chicago @ Omaha Omaha 14, Chicago 9 Omaha Daily Bee  | Game 191: Des Moines @ St. Paul St. Paul 1, Des Moines 0 St. Paul Globe  |