By Andrew Bergmann @dubly, for NBA.com
In 2003, the first round of the playoffs was changed from best-of-five to best-of-seven. Since then the 2008 Celtics are the only team to have played a full series in the first round before going on to win the NBA Finals.
This year five of the eight teams in the conference semifinals are coming off of a full seven-game series. The Pacers, Nets, Spurs, Clippers and Thunder were all stretched to seven games in the first round.