Has an MLB game ever ended 21-8?
Yes. MLB has seen a final score of 21-8 13 times. It first happened on July 27, 1883, when Baltimore Orioles beat Allegheny Club (none), and most recently on May 30, 2012, when Seattle Mariners beat Texas Rangers.
That makes 21-8 the 190th most common final score out of 330 that have ever occurred in MLB. One point away, 22-8 has happened 6 times and 21-9 has happened 5 times. At one point the score disappeared for 69 years, between 1930 and 1999.
Every 21-8 in MLB history
| Date | Result | Season | |
|---|---|---|---|
| 2012-05-30 | Seattle Mariners over Texas Rangers | 2012 | |
| 1999-07-03 | Philadelphia Phillies over Chicago Cubs | 1999 | |
| 1930-06-23 | Chicago Cubs over Philadelphia Phillies | 1930 | |
| 1920-07-25 | Detroit Tigers over St. Louis Browns | 1920 | |
| 1913-09-23 | Philadelphia Athletics over Detroit Tigers | 1913 | |
| 1912-05-29 | Boston Red Sox over Washington Senators | 1912 | |
| 1895-05-22 | Cincinnati Reds over Boston Beaneaters | 1895 | |
| 1894-08-06 | Brooklyn Bridegrooms over New York Giants | 1894 | |
| 1894-06-15 | Philadelphia Phillies over Cincinnati Reds | 1894 | |
| 1893-08-05 | Philadelphia Phillies over Washington Senators | 1893 | |
| 1890-08-28 | Columbus Solons over Philadelphia Athletics | 1890 | |
| 1887-04-30 | Baltimore Orioles over New York Metropolitans | 1887 | |
| 1883-07-27 | Baltimore Orioles over Allegheny Club (none) | 1883 |