Watch Boston Celtics vs Miami Heat — NBA Playoffs R1 G5 Free.

What's at Stake

The Boston Celtics return to TD Garden with a chance to clinch the series and advance to the Eastern Conference Semifinals. For the Miami Heat, this is a do-or-die scenario where a loss ends their season, adding another high-stakes chapter to one of the NBA's most consistent modern rivalries. A victory for Boston would provide much-needed rest for their starters, while a Miami win would shift the pressure back to Florida for a Game 6.

Head-to-Head

These two franchises have become perennial postseason fixtures, meeting frequently in the playoffs over the last several years. While Boston has controlled the momentum during the current series by utilizing their superior depth and home-court advantage, Miami has a reputation for resilience and tactical adjustments under pressure. The Celtics have generally held the upper hand in recent regular-season and postseason meetings, but the Heat’s ability to win tough road games remains a factor the top seed cannot ignore.

Key Players to Watch

• Jayson Tatum — The Celtics' cornerstone will look to dominate early to ensure the series does not return to Miami.
• Bam Adebayo — As the defensive anchor for the Heat, his ability to control the paint and facilitate the offense is vital for a Miami upset.
• Jaylen Brown — His aggressive transition scoring and perimeter defense are often the catalysts for Boston’s decisive scoring runs.

Prediction

The Celtics are expected to utilize the energy of the home crowd to close out the series with a convincing double-digit victory. While Miami’s disciplined zone defense may keep the game competitive through the first half, Boston’s perimeter shooting and depth should eventually overwhelm the shorthanded Heat. Expect a final score in the range of 112-101 in favor of the Celtics.