Most wins in an MLB season
116, by the 1906 Chicago Cubs (116-36) and the 2001 Seattle Mariners (116-46).
The 1906 Chicago Cubs finished .763, the best winning percentage since 1901; the 2001 Seattle Mariners did it in a 162-game season. Neither won the World Series: the Cubs lost it and the Mariners did not reach it. Next: the 1998 New York Yankees, 114-48. In 2026, the Milwaukee Brewers had the most wins, 103.
Every 105-win season
Regular season, the American and National Leagues since 1901. Ties are not counted. The schedule was 154 games until it went to 162 (1961 in the AL, 1962 in the NL); 1918, 1919, 1972, 1981, 1994, 1995 and 2020 were cut short.
Before 1901: the 1880 Chicago White Stockings went 67-17 (.798), the National League's best record.
Best winning percentage since 1901
Seasons of 100 or more decisions, so 2020's 60 games are not on it (the Dodgers went 43-17, .717).
Each franchise's most wins
Counted by franchise today, including its years under another name or in another city.
Questions
What is the most wins in an MLB season?
116, by the 1906 Chicago Cubs (116-36) and the 2001 Seattle Mariners (116-46). The Cubs lost the World Series and the Mariners did not reach it.
What is the best record in MLB history?
Since 1901, the 1906 Chicago Cubs' 116-36, a .763 winning percentage. Before that, the 1880 Chicago White Stockings went 67-17 (.798).
What is the most wins in a 162-game season?
116, by the 2001 Seattle Mariners (116-46).
How many teams have won 110 games?
7: the 1906 Chicago Cubs (116), the 2001 Seattle Mariners (116), the 1998 New York Yankees (114), the 1954 Cleveland Indians (111), the 2022 Los Angeles Dodgers (111), the 1909 Pittsburgh Pirates (110) and the 1927 New York Yankees (110).
How many 100-win teams have won the World Series?
38 of the 114 that won 100 or more in a year the World Series was played, through 2025.
Which team had the most wins in 2026?
The Milwaukee Brewers, 103-59.
Which franchise has the most 100-win seasons?
The New York Yankees, 21.