As the 2026 NFL season approaches, Polymarket has introduced event contracts related to the expected return timelines of injured players. However, these contracts may not comply with the rules set by the Commodity Futures Trading Commission (CFTC).

The 2026 NFL season kicks off on Wednesday, Sept. 9 with a Super Bowl rematch between the New England Patriots and the Seattle Seahawks. Under the self-certification process by the CFTC, exchanges propose new derivatives with launch dates, and if the Commission does not intervene before the launch date, the contracts become active. The CFTC did not intervene in the case of Polymarket’s NFL injury derivatives, but concerns have been raised regarding their compliance with the regulator’s proposed rules.
“The commission preliminarily believes that event contracts that explicitly settle solely by reference to the duration, severity, occurrence, or medical diagnosis of an injury sustained by a specific athlete raise serious public interest concerns,” according to proposed rules issued by the CFTC.
Both the NBA and the NFL have requested prediction market operators to halt offering event contracts that the leagues perceive as susceptible to manipulation, including those based on injuries, officiating, and player proposition wagers.
Concerns About ‘Perverse Financial Incentives’
Injury updates are closely followed by sports bettors and fantasy sports participants, particularly in the NFL where the absence of key players can impact point spreads significantly.
While the CFTC allowed the Polymarket contracts, it acknowledges the risks associated with injury-linked event contracts, citing the potential for perverse financial incentives that could lead to physical harm to athletes.
“Such event contracts create perverse financial incentives that could encourage or facilitate physical harm to athletes,” notes the commission in its proposed rules update. “Second, the settlement of such event contracts would likely depend on medical diagnoses, which raises public interest concerns about the confidentiality of medical information and the potential for such sensitive information to be leaked or exploited by insiders.”
In its proposed rule changes, the CFTC emphasized that injury reports and medical assessments do not provide a reliable basis for contract settlement free from manipulation.
NFL Injury Contracts Could Be Problematic
The prediction market industry has faced criticism over how some contracts have been settled, indicating the risks associated with offering NFL injury derivatives due to the uncertainty surrounding injury reports.
Furthermore, the industry has grappled with allegations and cases of insider trading. Critics warn that NFL injury event contracts could create opportunities for insider trading, with team personnel having access to sensitive player-specific information that could be manipulated by malicious actors.

