In Part 2 of our exploration of the NBA betting scandal, we consider one of the culprits: Prop Bets. However, we also consider the roles of the NBA’s sports betting partners in detecting suspicious activity that may flag the illegal release of information, and then explore whether the NBA’s financial ties to betting companies create an ethical conflict of interest eerily familiar to corporate compliance professionals.

Prop bets that began as an innovation to boost fan engagement have become a Trojan horse for corruption. Prop bets are wagers on specific player outcomes, like points scored or minutes played. Unfortunately, they have introduced a new form of insider trading into sports. And as the NBA, DraftKings, FanDuel, and ESPN Bet have learned the hard way, you cannot mix integrity and profit without a serious compliance framework in between.

The Prop Bet Problem

Traditional sports betting was straightforward: who wins, who loses, and by how much. But in today’s digital betting ecosystem, gamblers can place hundreds of micro-wagers per game;  on rebounds, turnovers, three-pointers, or even whether a player checks out early with an injury.

These “prop bets” (short for proposition bets) have become a massive driver of revenue. According to Silver Bulletin’s Nate Silver, player-specific prop bets now represent as much as 10–30% of total sportsbook activity, and they carry higher margins than traditional wagers because they’re marketed to casual fans, not professionals.

But with that innovation came a compliance nightmare. When Terry Rozier allegedly told a friend he’d fake an injury early in a March 2023 game, enabling insiders to bet the “under” on his scoring stats, he was not required to throw the entire game, and he arguably did not even affect the score. He only had to manipulate one statistic. That’s what makes prop bets so insidious: They make partial corruption profitable.

From a compliance perspective, this is micro-fraud. It is where individual actors exploit subcomponents of a larger system for localized gain. It’s the same logic behind an employee falsifying a single line item on an expense report or a trader front-running small transactions to avoid detection. As The New York Times’ David French warned, “Prop bets give the player absolute control over the outcome for many gamblers. Players can enrich themselves and their confederates — at least until they’re caught”. The result is a system in which the game’s integrity can be compromised without altering its final score.

How Sportsbooks Detect Suspicious Betting Patterns

To their credit, major sportsbooks like FanDuel, DraftKings, and BetMGM have built sophisticated monitoring systems to detect anomalies. These are the compliance analytics engines of the betting world.

Here is how they work and how they discovered the NBA scandal in the first place:

1. Data Aggregation and Pattern Recognition

Licensed sportsbooks collect vast amounts of betting data, literally down to timestamps, geolocations, and bet types. When dozens of bets suddenly target a specific player’s “under” statistics within minutes of tipoff, that’s a red flag. Nate Silver notes that these regulated sportsbooks have a “Know Your Customer” framework akin to AML rules. They know exactly who is betting and how much. This allows them to flag sudden spikes in specific markets or betting clusters linked by shared IP addresses or payment methods.

2. Odds Movement Analysis

Sophisticated betting algorithms continuously monitor line shifts. If insider information leaks,  such as a player’s plan to sit out, odds will move dramatically before official announcements. Sportsbooks cross-reference those shifts against bet timing to determine whether someone is acting on non-public information.

3. Regulator and League Reporting

When patterns suggest insider activity, sportsbooks are legally obligated to report suspicious behavior to state gaming commissions and, in this case, to the NBA’s integrity unit. That is exactly how the Rozier bets and before them, Jontay Porter’s suspicious unders, were first flagged.

Much like a financial institution’s Suspicious Activity Report (SAR) to the SEC or FinCEN, these alerts become the foundation for investigations. In both cases, data-driven compliance exposes behavior long before public whistleblowing ever could. But detection only works when the watchers are independent. And that’s where the NBA’s problem deepens.

The Conflict of Interest: When Integrity Is Also a Business Partner

The modern NBA is financially entangled with the very entities tasked with reporting its integrity breaches. FanDuel, DraftKings, and BetMGM are not simply sportsbooks. More importantly, they are official league partners. ESPN, now operating its own sportsbook, is simultaneously a rights holder and an integrity stakeholder.

That creates a textbook compliance conflict of interest.

• The NBA profits directly from the volume of bets placed, even on the prop bets that compromise its credibility.
• Sportsbooks rely on NBA data feeds and licensing deals worth millions, giving them a vested interest in maintaining the appearance of a “clean” market.
• Broadcasters like ESPN and Turner promote betting lines in real time, normalizing gambling within the game narrative itself.

This convergence of profit and policing mirrors the very risks that Sarbanes-Oxley sought to eliminate in corporate America, when auditors and clients had overlapping interests, objectivity vanished. The same principle applies here; you cannot be both the regulator and the revenue partner. As The Athletic’s Eric Koreen observed, “The league is inextricably tied to the alleged behavior, tied as it is to its gambling partners”. And as compliance professionals know, perception of independence matters as much as actual independence. If the NBA’s integrity unit relies on the cooperation and financial goodwill of its betting partners, how impartial can its investigations truly be?

The Compliance Parallel: When Oversight Becomes Complicity

Corporate compliance officers will find this moment uncomfortably familiar. The NBA’s integrity dilemma is not unique. It is the same trap that financial institutions, energy conglomerates, and tech giants fall into when they mistake profitability for legitimacy. When the people tasked with monitoring the game for integrity are also profiting from it, compliance becomes theater.

For the NBA, the only way forward is to disentangle integrity from income. For corporate leaders, the lesson is the same: your monitoring function can’t share the same incentives as your money-makers. Whether it’s a boardroom or a basketball court, the rule never changes: you cannot bet on integrity if you are already gambling with it.

Join us tomorrow as we consider the history of basketball’s betting scandals and a few compliance lessons.