Every NBA season produces teams that win more than they should and teams that win less. The Pythagorean expectation, borrowed from baseball and refined for basketball, estimates what a team's winning percentage ought to be based solely on points scored and points allowed. The gap between that projection and reality is one of the cleanest measures of luck, clutch performance, or some volatile cocktail of both. Now that the regular season is in the books, we can see exactly who benefited and who paid the tax.
Most Cursed by Pythagorean Luck
1. Los Angeles Lakers - The Lakers posted a .646 actual win percentage against a Pythagorean projection of just .565, an overperformance gap of .081. That sounds like a blessing until you realize it means their point differential never supported their record. Regression doesn't send a calendar invite, but it does show up. The playoffs will tell us whether those close wins were skill or a credit line coming due.
2. Milwaukee Bucks - A Pythagorean mark of .406 and an actual record of .390 doesn't sound like a large gap, but Milwaukee managed to underperform even a mediocre projection. They were a .406 team that played like a .390 one. Not a disaster. Just a quiet, persistent drag.
3. Philadelphia 76ers - Philly's .549 actual record ran ahead of a .531 Pythagorean expectation. The gap is modest, roughly a game and a half of fortune over 82 games, but it placed them on the wrong side of the ledger heading into the postseason.
4. Sacramento Kings - The Kings projected at .321 and finished at .268. That is an underperformance of over four wins across a full season. Sacramento found new and creative ways to lose games their point differential suggested they could have stolen.
Some teams just refuse to catch a break on the margins.
5. Orlando Magic - Orlando's actual .549 outpaced a Pythagorean figure of .507 by a healthy margin. Like the Lakers, they lived on the right side of close games all year. Whether that was defensive identity or fourth-quarter fortune is a debate their playoff opponents will help settle.
Most Blessed by Pythagorean Luck
1. Charlotte Hornets - The Hornets projected at .566 but finished at .537, meaning they left roughly two wins on the table relative to their point differential. Charlotte's margins said they were better than their record. The standings disagreed.
2. New Orleans Pelicans - A Pythagorean win rate of .400 and an actual mark of .317 represents one of the larger negative gaps in the league. New Orleans was bad, but the math says they were not quite that bad. Cold comfort for a lottery-bound roster.
3. Indiana Pacers - Indiana projected at .315 and landed at .232. That is a staggering underperformance of nearly seven wins. The Pacers' point differential painted them as a bad team. Their record painted them as historically futile.
4. Miami Heat - Miami's split was razor-thin, a .529 projection against a .524 actual record. Barely a rounding error. The Heat were almost exactly as good as their points said they were, which in this context counts as blessed.
5. Boston Celtics - The Celtics posted a .683 record against a .662 Pythagorean expectation. Boston outperformed slightly, but their point differential was dominant enough that even the projection placed them near the top of the league. Good teams tend to earn their small margins.
What This Tells Us
The full range this season ran from Indiana's nightmarish .083 underperformance to the Lakers' .081 overperformance, a spread of roughly 13 wins from floor to ceiling. Historically, Pythagorean gaps of this size regress almost entirely within one to two seasons. Teams that significantly outperform their point differential, like these Lakers, tend to come back to earth. Teams buried beneath their projection, like the Pacers, tend to bounce back, assuming the roster stays intact.
The number doesn't tell you who's good. It tells you who's been lucky. And luck, by definition, does not renew its contract.
