The MLB Belt · reign 567
Pittsburgh Alleghenys
Took the belt from Indianapolis Hoosiers, 10–6, on September 20, 1889. Lost it to New York Giants, 6–3, on October 2, 1889.
9Defenses
12Days
15thReign for the franchise
Every game of the reign
| Belt game | Date | Result | |
|---|---|---|---|
| 1,360 | Sep 20, 1889 | Pittsburgh Alleghenys beat Indianapolis Hoosiers 10–6 | Title change |
| 1,361 | Sep 21, 1889 | Pittsburgh Alleghenys beat Indianapolis Hoosiers 9–6 | Defense |
| 1,362 | Sep 23, 1889 | Pittsburgh Alleghenys beat Washington Nationals (1886–89) 6–3 | Defense |
| 1,363 | Sep 24, 1889 | Pittsburgh Alleghenys beat Washington Nationals (1886–89) 13–8 | Defense |
| 1,364 | Sep 25, 1889 | Pittsburgh Alleghenys beat Washington Nationals (1886–89) 8–5 | Defense |
| 1,365 | Sep 26, 1889 | Pittsburgh Alleghenys beat Philadelphia Quakers 9–2 | Defense |
| 1,366 | Sep 27, 1889 | Pittsburgh Alleghenys beat Philadelphia Quakers 4–3 | Defense |
| 1,367 | Sep 28, 1889 | Pittsburgh Alleghenys beat Philadelphia Quakers 4–1 | Defense |
| 1,368 | Sep 30, 1889 | Pittsburgh Alleghenys and New York Giants tied 3–3 | Tie · defense |
| 1,369 | Oct 1, 1889 | Pittsburgh Alleghenys beat New York Giants 7–2 | Defense |
| 1,370 | Oct 2, 1889 | New York Giants beat Pittsburgh Alleghenys 6–3 | Title change |