NBA instructs sportsbook partners to ban certain bets ripe for manipulation, per report

Notably, ‘under’ parlays on the same player’s statistics are off the board

In the aftermath of multiple high-profile gambling scandals, the NBA will no longer allow certain types of bets that would appear to be the lowest-hanging fruit for potential conspirators. Citing a memo distributed to the league's sportsbook partners on Friday, ESPN is reporting that "bettors will not be able to include the under on the same player's statistics in parlays, in addition to other betting markets the league considers problematic." The NBA and prominent sportsbooks have agreed to ban multiple types of bets, per me and @DavidPurdum, such as:- Parlay bets involving the under on the same player's statistics – "First of" market; examples: winner of opening tip, an individual's specific shot, rebound, assist,… The league also directed its authorized gambling operators, including DraftKings and FanDuel, not to offer bets on the winner of the opening tip, players to miss specific shots and under bets on players who are expected to play fewer than 12 minutes in a specific game.

The NBA has the authority to restrict what partner sportsbooks offer through its agreements. The NBA estimates its partner sportsbooks account for upward of 99% of the U.S. betting market. These bets on an individual player's over/under lines are particularly ripe for fixing because the player can control the outcome. These were the bets exploited by Jontay Porter, who received