The 2026 Eastern Conference semifinals will be decided Tuesday night at TD Garden, where a Game 7 between the Boston Celtics and Philadelphia 76ers will determine which team’s season continues. According to a CBS Sports analysis, this series has been defined by alternating home wins and a split of the first six games, leaving the Celtics with a 3-2 series advantage on their own floor but the 76ers carrying the momentum of a decisive Game 6 victory in Philadelphia. The stakes extend beyond this single postseason: a loss for Boston would raise questions about the ceiling of a roster that has now failed to close out multiple conference semifinal series. For Philadelphia, the outcome shapes the legacy of Joel Embiid’s prime and the franchise’s ability to advance past a rival that has historically blocked its path. The resolution Tuesday will either affirm Boston’s home-court superiority or validate Philadelphia’s resilience, with the winner advancing to face a well-rested Milwaukee Bucks team in the conference finals.