 Standings at start of day | Results for July 28, 1888 Game 255: St. Paul 6, Des Moines 3 |
| Game 255: St. Paul @ Des Moines St. Paul 6, Des Moines 3 St. Paul Globe  | Game 256: Milwaukee @ Kansas City Milwaukee 4, Kansas City 3 Kansas City Times  | Game 257: Minneapolis @ Omaha Omaha 6, Minneapolis 5 Omaha Daily Bee  | Game 258: Chicago @ Sioux City Sioux City 6, Chicago 5 Sioux City Journal  |