 Standings at start of day | Results for May 5, 1888 Game 15: Des Moines 6, Chicago 2 |
| Game 15: Chicago @ Des Moines Des Moines 6, Chicago 2 Des Moines Register  | Game 16: St. Paul @ Kansas City Kansas City 13, St. Paul 2 Kansas City Times  | Game 17: Milwaukee @ Omaha Milwaukee 3, Omaha 2 Omaha Daily Bee  |