The NBA Finals will be going to a Game 7 for just the eighth time in the last 43 seasons. By contrast, six of the last 11 Stanley Cup Finals have gone seven games.
But all told, Major League Baseball extends its final series to the limit more often than either. Over one-third (34.6%) of the best-of-seven World Series have ended 4-3.
Below is a look at how often each sport's final series goes to a Game 7 (2013 NBA Finals are included, 2013 NHL Finals are not):