Explaining the NBA Rule Changes for 2026-27 Season, Including NBA Cup Bracket Format

The 2026-27 NBA season, which tips off Tuesday night, brings a host of new things to the hoops world.

There is a fresh, ballyhooed batch of rookies, a flock of familiar faces in new places and a new set of challenges to traverse this 82-game gauntlet.

On that latter point, there are some tweaks to the way the league will handle the draft lottery, the Emirates NBA Cup and certain on-court calls, so let's examine and explain these changes.

Tired of the unsightly (but, under the old system, often understandable) act of tanking, the NBA's Board of Governors overhauled the draft lottery system to directly combat it. The new 3-2-1 Lottery system takes effect this season and will be in place for the 2027, 2028 and 2029 drafts.

It's a pretty dramatic departure from the norm, which explains why it was only approved for essentially a three-year trial run. It should lessen the most egregious forms of tanking, although it could also wind up punishing a few misfortunate franchises just for lacking talent.

As for the changes , there might be too many to mention, but some of the biggest are flattened lottery odds, an expansion from 14 to 16 teams, a drawing for all 16 lottery picks and restrictions from picking first in consecutive drafts or owning top-five picks in three consecutive drafts. There's also a draft relegation for the teams with the worst three records, who will hold worse odds of a top-nine pick than the other non-play-in teams.

For those who felt the league had to do something to address tanking, it certainly took a big swing and attempted to do a whole lot. No one knows how it will look in practice, but it should change the way bottom-feeders approach the final stretch run.

New (and Historic) Setting for Emirates NBA Cup

The tournament, now in its fourth year, will no longer hold its semifinal and championship games at the T-Mobile Arena in Las Vegas. Now, the higher-seeded team in each conference will host the semifinals, and the two teams to advance will face each other in a championship game at historic Hinkle Fieldhouse in Indianapolis, the home of Butler University.

As for the tournament itself, Group Play runs from Friday, Oct. 30 through Friday, Nov. 27. The Knockout Rounds start on Friday, Dec. 4, and the championship will be played on Friday, Dec. 11. All games of the tournament count toward the regular-season standings, other than the finale.

The first three NBA Cups crowned three different champions. The Los Angeles Lakers won the inaugural event, the Milwaukee Bucks won the second and the New York Knicks won the most recent.

While the NBA doesn't rule out changes every year, it will often have certain areas of focus for its officials.

Now, these things are sometimes stressed early in the season and not so much later on, but that can happen because the action involved is effectively taken out of the game (like transition take fouls, for instance).

For the 2026-27 season, the league is lasering in on push-offs . Referees are now gauging feeling, firming, force and full extension. In short, ball-handlers can use their off arms to feel for their defender or firm up in front of them, but they cannot contact defenders with force or create advantages with full arm extensions.

Refs are also instructed to watch illegal screens, along with illegal defensive contact that impedes movement, like clutching and grabbing off the ball. There's also an emphasis on "straight-line pathway plays," where offensive or defensive players can be called for a foul for going out of their way to bump the other off of their direct path toward the basket.

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Bold Predictions for 2026-27 NBA Season 🔮