The MLB Belt · reign 553
Pittsburgh Alleghenys
Took the belt from New York Giants, 9–2, on August 15, 1889. Lost it to Chicago White Stockings, 2–1, on August 23, 1889.
6Defenses
8Days
12thReign for the franchise
Every game of the reign
| Belt game | Date | Result | |
|---|---|---|---|
| 1,327 | Aug 15, 1889 | Pittsburgh Alleghenys beat New York Giants 9–2 | Title change |
| 1,328 | Aug 16, 1889 | Pittsburgh Alleghenys beat New York Giants 7–4 | Defense |
| 1,329 | Aug 17, 1889 | Pittsburgh Alleghenys beat New York Giants 15–10 | Defense |
| 1,330 | Aug 19, 1889 | Pittsburgh Alleghenys beat Cleveland Spiders 4–3 | Defense |
| 1,331 | Aug 20, 1889 | Pittsburgh Alleghenys beat Cleveland Spiders 6–1 | Defense |
| 1,332 | Aug 21, 1889 | Pittsburgh Alleghenys beat Cleveland Spiders 6–5 | Defense |
| 1,333 | Aug 22, 1889 | Pittsburgh Alleghenys beat Chicago White Stockings 11–7 | Defense |
| 1,334 | Aug 23, 1889 | Chicago White Stockings beat Pittsburgh Alleghenys 2–1 | Title change |