In early December 2025, the Oklahoma City Thunder accomplished an impressive 21-1 start to the NBA season. With the feat, the Thunder became the 4th NBA team ever to start a season 21-1 or better.

Check out the franchises with the best starts to a season in NBA history below:

• Golden State Warriors, 24-0, 2015-16

• Cleveland Cavaliers, 15-0, 2024-25

• Houston Rockets, 15-0, 1993-94 *

• Washington Capitols, 15-0, 1948-49

• Dallas Mavericks, 14-0, 2002-03

• Boston Celtics, 14-0, 1957-58

• Chicago Bulls, 12-0, 1996-97 *

• Seattle SuperSonics, 12-0, 1982-83

• Atlanta Hawks, 11-0, 1997-98

• Los Angeles Lakers, 11-0,1997-98

• Portland Trail Blazers, 11-0, 1990-91

• Boston Celtics, 11-0, 1964-65 *

• Philadelphia 76ers, 10-0, 2000-01

• Seattle SuperSonics, 10-0, 1993-94

• Boston Celtics, 10-0, 1972-73

* denotes NBA championship that year

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