Underdog Sues Tennessee Over Prediction Markets
Alex Harper • Oct 19, 2026 Topping the NBA betting rules 2026 changes is a ban on parlays that stack one player’s unders. The league also told its sportsbook partners to drop opening tip, “first-of” and missed-shot props.
If you build NBA same game parlays, some bets from last season may be gone from your app. These NBA betting restrictions come from a league memo, not a state law. CasinoUS explains what changed and what DraftKings and FanDuel have said.
Key Insights: NBA Betting Rules 2026 at a Glance
The NBA betting rules 2026 changes come down to five points.
- The NBA told partner sportsbooks in an October 16, 2026 memo to stop offering several bet types.
- Parlays that combine unders on the same player’s stats are no longer allowed.
- Opening tip, player “first-of” and missed-shot markets are off the board.
- Unders on players expected to play fewer than 12 minutes are banned.
- DraftKings and FanDuel both backed the changes, while prediction markets are not covered.
What Are the NBA’s New Betting Restrictions?
The NBA’s new betting restrictions limit which NBA betting markets its licensed sportsbook partners can offer. The league sent the guidance in a memo to partners on Friday, October 16, 2026, as ESPN first reported.
A league media note the same day said the targeted bets carry heightened integrity risks. The rules apply from the start of the 2026–27 NBA season. They also extend to WNBA games starting in 2027, per SBC Americas.
Who Has to Follow the Rules?
The restrictions bind sportsbooks, not individual bettors. The NBA’s commercial agreements with its authorized operators let it decide which markets those partners offer, Covers reported. The league estimates those partners cover more than 99% of the U.S. betting market, according to Eurohoops.
For bettors, the effect is simple. Banned markets should disappear from your sportsbook’s menu and parlay builder.
League Rules vs. Sportsbook Policies vs. State Regulations
Three separate rule sources decide what you can bet on, and only one of them changed here.
| Rule source | Who sets it | What it controls | Part of this change? |
| NBA league policy | The NBA, through partner agreements | Which NBA markets partner sportsbooks may offer | Yes, the 2026–27 bans are league policy |
| Sportsbook house rules | Each operator | Stake limits, parlay building, voids and settlement | Indirectly, as operators apply the league’s list |
| State regulations | State gaming regulators | Which bet types are legal in each state | Not part of this announcement |
Which Player Prop Bets and Parlays Are Affected?
The affected bets fall into two groups: new bans for 2026–27 and restrictions carried over from earlier seasons.
A player prop is a bet on one player’s stats rather than the game result. A parlay links two or more bets on one ticket, and every leg must win. A same game parlay (SGP) builds that ticket from markets in a single game.
An under bet wins if a player finishes below a set number. For example, “under 18.5 points” wins if the player scores 18 or fewer. Our guide on how to read sports betting odds explains how these lines work.
Newly Restricted Bets for 2026–27
Reporting from ESPN and Front Office Sports lists six new restrictions.
- Same-player under parlays: parlays with multiple under legs tied to one player. The memo called these “low likelihood, high payout bets,” per ESPN.
- Player “first-of” markets: first points or basket, first rebound, assist, steal or block.
- Opening tip: which team wins the opening jump ball.
- Missed-shot props: whether a player misses his first, next or another specific shot.
- Low-minute unders: under bets on players expected to play fewer than 12 minutes in a game.
- Bigger-payout alternate unders: alternate under lines that offer larger payouts, per Legal Sports Report.
Restrictions Already in Place
The new list adds to bans from earlier seasons, which stay in effect. Those cover turnover props, foul bets, missed free throw bets and limits on 10-day or two-way contract players, Eurohoops reported.
What You Can Still Bet On
The league is not banning all under bets. The reported memo also does not mention point spreads, moneylines, game totals or player overs.
Here is how the parlay rule works in practice:
- Not allowed: Player A under 20.5 points plus Player A under 7.5 rebounds in one parlay.
- Still a standard market: a straight bet on Player A under 20.5 points.
The reported rules name only same-player under combinations. Your sportsbook’s own parlay rules decide how other combinations are handled.
How the Rules Affect DraftKings and FanDuel Users
DraftKings and FanDuel are the NBA’s two official betting partners, and both publicly backed the new rules. Neither statement detailed changes inside the apps, so check market availability in your own account.
DraftKings
DraftKings told Front Office Sports the guidance “formalizes many of the market restrictions already reflected in DraftKings Sportsbook’s practices.” Front Office Sports also noted that some operators already did not offer the banned props.
The DraftKings statement did not list which markets changed in its app.
FanDuel
A FanDuel spokesperson told ESPN that legal sports betting depends on collaboration with leagues and states. The company added that it remains committed to rooting out abuses that threaten fair competition.
FanDuel’s statement also did not detail which markets were removed from its app.
Why Did the NBA Introduce These Restrictions?
The NBA links the new limits to recent federal gambling cases and its wider concerns about player props.
Same-player under parlays featured in federal cases against former Raptors player Jontay Porter and guard Terry Rozier, ESPN reported. Porter pleaded guilty to conspiracy to commit wire fraud in July 2024 and is awaiting sentencing. The NBA banned him for life that year.
Prosecutors said one bettor placed an $80,000 parlay on Porter’s unders in a March 2024 game, according to Legal Sports Report. That ticket carried a potential payout of about $1.1 million.
Rozier faces federal charges tied to alleged betting on his unders in a March 2023 game. He has pleaded not guilty and denies wrongdoing, Legal Sports Report noted. Neither the charges nor the allegations have been proven in court.
NBA executive vice president Scott Kaufman-Ross told ESPN the Porter and Rozier cases were factors in the parlay ban. He also said the league wants to remove problem bets without pushing bettors toward illegal sportsbooks, per Covers.
Other Integrity Measures for 2026–27
A separate memo to teams outlined new integrity steps for the season. Front Office Sports reported the first two below, and Covers reported the last two.
- An in-house, AI-based platform that flags unusual betting activity.
- Required in-person betting-rules training for players, coaches and training staffs, led by retired FBI agent Charles Tillman.
- A partnership with Social Protect, which helps players find and remove threatening social media messages.
- A text-message hotline for players to report harassment from bettors.
What Should Bettors Check Before Placing a Wager?
A quick check before you bet on NBA games can save you a rejected or voided ticket. The list below is general information, not legal or financial advice.
- Your sportsbook’s current NBA house rules and parlay terms.
- Whether the market you want is available in your state.
- Minimum and maximum stakes, plus any limits on parlay legs.
- Whether a market is restricted by the sportsbook or your state regulator.
- How the operator settles canceled, suspended or voided bets.
- Whether an advertised market or odds boost is still live when you place the bet.
If a leg gets rejected, stick with licensed sportsbooks rather than looking for workarounds. Unlicensed sites sit outside state oversight, so you have no regulator to complain to.
FAQs About the NBA’s New Betting Rules
Here are quick answers to the most common questions about the changes.
What Are the NBA Betting Rules for 2026?
The NBA has barred its partner sportsbooks from offering six bet types in 2026–27. Same-player under parlays, opening tip bets and player “first-of” props top the list. Earlier bans on turnovers, fouls and missed free throws stay in place. The rules apply from the October 20, 2026 season opener and reach the WNBA in 2027.
Are NBA Player Prop Bets Banned?
No. Most NBA player props remain available at licensed sportsbooks. The league targeted specific markets it sees as easier to manipulate, such as low-minute unders and “first-of” props. A straight bet on a player’s points, rebounds or assists is not part of the reported bans. Availability still varies by sportsbook and state, so check your app first.
Can I Still Build NBA Same Game Parlays?
Yes, with limits. You can no longer combine multiple unders on the same player’s stats in one parlay. The reported memo does not name other same game parlay combinations. Your sportsbook’s parlay builder may block certain legs, so review the bet slip before confirming. The league has not publicly detailed how it treats unders on two different players.
Do the New Rules Apply to DraftKings and FanDuel?
Yes. DraftKings and FanDuel are the NBA’s official betting partners, and both received the league’s guidance. Fanatics and Caesars also told Front Office Sports they support or comply with it. However, neither company’s public statement detailed which markets changed in its app. Market availability can still differ between the two apps, so check each one directly.
Do the Rules Apply to Prediction Markets Like Kalshi?
No. The restrictions cover the NBA’s traditional sportsbook partners, not prediction market platforms. The NBA has no agreements with Kalshi or Polymarket, Front Office Sports reported. Commissioner Adam Silver told CNBC the league wants access to prediction market data. Covers reports the NBA has asked the CFTC, the federal regulator for those platforms, to build a regulatory framework.
