[7] The only instance in the MLB to date was by the Boston Red Sox in the 2004 American League Championship Series.
[8] The only instance in a championship series was by the NHL's Toronto Maple Leafs in the 1942 Stanley Cup Finals.
[9] Conversely, eleven teams have evened a series after being behind 3–0 and then lost in the final game: six in the NHL, four in the NBA, and one in MLB.
In other cases, like the Swedish Hockey League, seven-game series are common but no team has yet overcome such a deficit.
In Stanley Cup Playoffs history, 211 teams faced a 3–0 deficit in a best-of-seven series.
Of the 157 NBA teams (as of June 17, 2024[update]) that faced a 3–0 deficit, only 4 of them (~3%) forced a game seven which they ultimately lost.