The Greatest Playoff Run in NBA History?

What makes a playoff run the greatest in NBA history?

At first glance, the answer seems obvious. Maybe it's the team that dominated every opponent in its path. Maybe it's the team that survived the toughest competition. Or maybe it's the team that exceeded expectations more than any champion before it.

The problem is that those aren't always the same team.

The 2017 Golden State Warriors steamrolled the league on their way to a 16–1 postseason, finishing with one of the most dominant playoff records ever. The 2001 Lakers came within a single game of an undefeated playoff run. The 1996 Bulls combined a 72-win regular season with a championship that cemented Michael Jordan's legacy. Then there are teams like the 2011 Mavericks, who survived one of the most difficult championship paths in NBA history, and the 2025 Pacers, whose improbable run to the Finals reminded everyone that belief can carry a team further than anyone expects.

Each of those teams has a legitimate claim to greatness.

But which playoff run was actually the greatest?

To answer that question, I wanted something more objective than highlight reels, win-loss records, or personal opinion. I wanted a way to compare playoff performances across completely different eras of basketball.

So I turned to a system I created myself.

Introducing the Slay System

The Slay System, short for Scoring Level Above Year, was designed around a simple idea:

Not every great statistical performance is equally impressive.

Imagine two players.

• Player A: 60% shooting on 5 attempts per game.

• Player B: 50% shooting on 30 attempts per game.

Almost everyone would agree Player B's efficiency is more impressive. While Player A has the higher percentage, maintaining elite efficiency on six times the volume is significantly more difficult. If Player A suddenly took 30 shots per game, we'd expect that percentage to decline. Likewise, if Player B only took five shots, we'd expect his efficiency to improve.

This is the principle of efficiency scaling.

The more difficult the environment, the harder it becomes to maintain elite efficiency.

The same principle applies to teams and the slay system uses it to gauge teams as well. It takes your efficiency scaled numbers and makes them relative to your specific season.

Scoring 120 points per 100 possessions in an era where everyone scores efficiently isn't as impressive as producing that same offensive output in an era where league-wide efficiency is much lower. Likewise, dominant defenses should be judged relative to the offensive environment they played in rather than raw numbers alone.

The Slay System attempts to account for those differences by measuring how far above league average a team performed offensively and defensively relative to its own season.

Instead of simply asking how good was this team?

It asks

How much better than everyone else were they?

Putting the Slay System to the Test

To see how the model performed, I compared several of the greatest championship teams in NBA history. Each team's playoff run was plotted using two metrics.

   OffSlay: Offensive Scoring Level Above Year

   DefSlay: Defensive Scoring Level Above Year

Rather than comparing raw offensive or defensive ratings across eras, the graph measures how exceptional each team was within its own basketball environment.

Some results were exactly what you'd expect.

The 1996 Chicago Bulls found themselves near the top of the graph. Their combination of an elite offense, dominant defense, and a 72-win regular season has long made them the benchmark for championship basketball. The Slay System agrees, they weren't simply great for their era, but were historically great.

Other teams revealed interesting strengths and weaknesses.

The 2013 Miami Heat, for example, posted one of the strongest offensive profiles in the sample but didn't separate themselves defensively to the same extent as some of the other all-time champions. On the opposite end of the spectrum sat the 1989 Detroit Pistons, whose defense was among the most dominant in the study, while their offense lagged behind many of the other teams.

Then came the first surprise.

The 2017 Golden State Warriors, arguably the most talented roster ever assembled, didn't finish at the top of the graph.

At first, that seems impossible.

This is the same team that went 16–1 during the playoffs, featured Kevin Durant, Stephen Curry, Klay Thompson, and Draymond Green, and is widely considered one of the greatest basketball teams ever constructed.

So why weren't they No. 1?

The answer lies in context.

By 2017, NBA offenses had changed dramatically. Teams across the league had embraced the three-point revolution that Golden State helped pioneer. League-wide true shooting percentage reached what was then an all-time high, making elite offense more common than it had been in previous eras.

Because the Slay System measures performance relative to each season's offensive environment, separating yourself from the rest of the league became significantly more difficult. Even so, the Warriors still produced one of the highest offensive scores in the entire dataset.

In other words, the model isn't arguing that the 2017 Warriors weren't one of the greatest teams ever.

It simply suggests that the greatest team and the greatest playoff run aren't necessarily the same thing.

As the graph climbs toward the top, familiar names continue to appear. The Showtime Lakers. Shaq and Kobe's Lakers. Dirk Nowitzki's 2011 Mavericks. Even the 2018 Warriors finish slightly ahead of the 2017 version.

Then, at the very top of the graph, two teams separate themselves from everyone else.

The first is exactly who you would expect.

The 1996 Chicago Bulls.

The second is the 2026 New York Knicks.

According to the Slay System, no championship team in the study produced a playoff performance that separated itself from its era more than New York.

That result immediately raises an obvious question.

Is the model revealing something we've overlooked, or is it missing an important piece of the story?

The Biggest Counterargument: Strength of Schedule

Whenever a playoff run is labeled as "one of the greatest ever," the first question is almost always the same.

Who did they actually beat?

That's the biggest criticism surrounding the Knicks' championship.

The Eastern Conference entered the playoffs battered by injuries. Jayson Tatum wasn't fully healthy. Tyrese Haliburton (the player who had repeatedly ended New York's postseason dreams in previous years) was unavailable. The Knicks also avoided facing the conference's best regular-season team altogether.

At first glance, those circumstances seem like enough to explain New York's historic numbers.

If the competition wasn't as strong, wouldn't we expect a dominant statistical performance?

To test that idea, I compared the average regular-season SlayScore of every opponent each championship team faced during its playoff run.

The results support part of the criticism.

Among the teams at the top of the previous graph, the Knicks faced one of the easier playoff paths. In fact, the only championship team in this group with a lower average opponent SlayScore was the Showtime Lakers.

So yes, their path was easier than those faced by most of the other historic champions.

But that's only part of the story.

At the opposite end of the graph sit the 2011 Dallas Mavericks, whose championship run featured one of the most difficult collections of opponents ever faced by an NBA champion.

Their path included Kobe Bryant's defending champion Lakers, Kevin Durant, Russell Westbrook, and James Harden's rising Thunder, and finally the Miami Heat's newly formed Big Three led by LeBron James.

For years, that run has been remembered as one of the greatest underdog championships in league history.

The data agrees.

The Mavericks finished with the toughest playoff path in this study.

What's perhaps even more impressive, however, is the team sitting just behind them.

The 1996 Bulls faced almost the same level of competition while simultaneously producing one of the most dominant playoff performances ever measured by the Slay System.

That combination of elite competition and overwhelming dominance is a major reason why Michael Jordan's Bulls remain the standard against which every championship team is judged.

The Knicks, by comparison, clearly benefited from a more favorable bracket.

But that still leaves an important question unanswered.

If their path was truly that easy,

Why did almost nobody expect them to win the championship?

Expectations Matter More Than We Think

Strength of schedule is important.

A championship team should be judged by who it defeated, not just how impressive its numbers looked.

But there is another part of greatness that statistics alone cannot fully capture.

Expectation.

Some teams enter the playoffs as favorites and simply do what everyone expects them to do.

Others enter with almost no one believing they are capable of reaching the finish line.

Those two accomplishments should not be viewed the same.

Heading into the playoffs, the Knicks were not viewed as a championship favorite. Despite the injuries around the league and the questions surrounding the Eastern Conference, sportsbooks gave New York +2200 odds to win the title.

In other words, before the postseason began, the expectation was that they had roughly the same chance as a long shot contender, not a future champion.

That number becomes even more surprising when compared to other famous unexpected championship runs.

The 2011 Dallas Mavericks entered the playoffs at approximately +1800.

The 1995 Houston Rockets, who became champions despite entering the postseason as a lower seed, were also around +1800.

The 2022 Golden State Warriors, returning to championship glory after years away from the Finals, entered at roughly +800.

The Knicks were lower than all of them.

They were the least likely team to win the championship before the playoffs began and still went on to produce one of the most statistically dominant postseason runs ever measured.

That distinction matters.

A team cannot control who is available to play against them.

The Knicks did not create the injuries that affected their opponents. They did not choose their playoff bracket. They simply played the teams placed in front of them and dominated those matchups.

A weaker path can make a championship easier.

But it does not fully explain a team exceeding every expectation placed upon them.

That is the difference between simply winning a title and creating a historically memorable playoff run.

The greatest playoff runs are not just about how good a team was.

They are about how far that team exceeded what anyone thought was possible.

So, What Was the Greatest Playoff Run in NBA History?

After looking at dominance, competition, and expectations, we can finally return to the original question.

What makes a playoff run the greatest in NBA history?

The answer depends on what you value most.

If the goal is finding the team that was the most dominant relative to its competition, then the answer may be the 1996 Chicago Bulls.

They combined historic regular season success with one of the most complete championship runs ever measured. They were elite on both ends of the floor, faced strong competition, and separated themselves from the rest of the league in a way few teams ever have.

If the goal is finding the most talented and best constructed basketball team, then the answer may be the 2017 Golden State Warriors.

Their roster combined overwhelming shooting, versatility, and star power. They weren't just built to win against certain teams, but to beat nearly any style of basketball and almost any team construction in a full series.

If the goal is finding the most difficult road to a championship, then the answer may be the 2011 Dallas Mavericks.

They defeated some of the best teams of their era, including multiple future Hall of Fame cores, without having the same level of talent as their opponents.

But if the goal is finding the team that accomplished the most compared to what anyone expected from them

then the answer may be the 2026 New York Knicks.

Their playoff run combined two things that rarely exist together, historic statistical dominance and overwhelming uncertainty before the journey began. No one exceeded expectations more than they did.

The Slay System does not prove that the Knicks were the most talented team ever.

It does not prove they faced the toughest competition ever.

It does not erase the greatness of teams like the Bulls, Warriors, or Mavericks.

Instead, it reveals something different.

Greatness in sports is not one single thing.

Sometimes greatness is dominance.

Sometimes it is overcoming impossible circumstances.

Sometimes it is defeating the best teams in the world.

And sometimes it is doing something nobody thought you were capable of doing.

The 1996 Bulls defined dominance.

The 2011 Mavericks defined resilience.

The 2017 Warriors defined basketball perfection.

But the 2026 Knicks may have defined something even rarer,

exceeding every expectation.

And because of that, they may have just produced

the greatest playoff run in NBA history.