As the NBA playoffs tip off, a classic Eastern Conference rivalry is renewed: the Boston Celtics versus the Philadelphia 76ers. While every series offers a fresh start, the historical ledger tells a compelling story that heavily favors the Celtics.

Boston enters this first-round matchup not just as the higher seed with home-court advantage, but as a team with a profound psychological edge. The numbers are staggering. Since the playoffs expanded to 16 teams, a No. 7 seed has only toppled a No. 2 seed three times in a seven-game series.

This specific rivalry amplifies that trend. The Celtics hold a commanding 15-7 all-time playoff series lead over the 76ers and have won the last six postseason meetings. Philadelphia's last series victory against Boston in the playoffs came in 1982, an era defined by legends like Julius Erving.

The modern era belongs to Celtics star Jayson Tatum, who has been a nightmare matchup for Philly. In three victorious playoff series against them, Tatum has averaged an impressive 27 points, 8 rebounds, and 4 assists, showcasing the two-way excellence that defines today's game.

Adding to Boston's formidable resume is their consistency under pressure. The Celtics have advanced past the first round in eight of their last nine playoff appearances and are a perfect 4-0 in opening-round series under head coach Joe Mazzulla.

While the 76ers will undoubtedly fight, the confluence of seeding, star power, and overwhelming historical trends creates a mountain they must climb. For Boston, history isn't just a record—it's a blueprint for continuing their championship pursuit.