The 2026 NBA playoffs are set to begin on April 18, with the Boston Celtics and Philadelphia 76ers facing off in a first-round Eastern Conference matchup that renews one of the league’s most historic rivalries.
According to the official 2026 NBA playoffs bracket from verified sources, the Celtics enter as the No. 2 seed in the East, while the 76ers clinched the No. 7 seed after returning to the postseason following a year away.
This series marks the latest chapter in a long-standing playoff rivalry between Boston and Philadelphia, two franchises that have met multiple times in the postseason over the decades.
The Celtics are extending their franchise-record streak of consecutive playoff appearances to twelve seasons, the longest active streak in the NBA, as confirmed by postseason appearance updates in the 2026 NBA playoffs overview.
Meanwhile, the 76ers’ return to the playoffs ends a one-year absence, positioning them to challenge a Celtics team that has maintained elite consistency through sustained roster continuity and coaching stability.
Home-court advantage in the series will belong to Boston, which secured the higher seed through its regular-season performance in the 2025–26 campaign.
The winner of this first-round series will advance to face either the Fresh York Knicks or Atlanta Hawks in the Eastern Conference semifinals, depending on the outcome of the other first-round matchup in the bracket.
Both teams will look to establish early momentum in a best-of-seven series where adjustments, depth and execution in close games often determine progression.
Veteran leadership and playoff experience are expected to play a significant role, particularly for a Celtics core that has navigated deep postseason runs in recent years.
For Philadelphia, the series represents an opportunity to validate the progress of a roster that has undergone strategic changes aimed at returning to contention.
The opening games will be closely watched for how each team implements its defensive schemes and manages offensive flow against familiar opponents with well-known tendencies.
As the playoffs unfold, the Sixers-Celtics duel will serve as an early indicator of which Eastern Conference teams possess the resilience and versatility to advance deep into June.
Fans can follow live results, updated schedules, and bracket developments through official NBA platforms and authorized sports coverage providers as the postseason progresses toward the NBA Finals conclusion in June 2026.
The next confirmed checkpoint in this series is Game 1, scheduled to tip off at the TD Garden in Boston, with the exact time to be announced closer to the date based on the official NBA playoff schedule release.
Stay tuned to Archysport for continuing coverage, analysis, and updates as the 2026 NBA playoffs unfold.
