FanDuel Strengthens Anti-Harassment Policy After MLB Pitcher Appeals to Commissioner

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In response to mounting concerns over gambling-related athlete harassment, FanDuel has strengthened its terms and conditions to explicitly ban customers who threaten or harass athletes, coaches, or officials. This decisive action follows increasingly vocal concerns from MLB players, including Boston Red Sox pitcher Lucas Giolito, who recently revealed he took his harassment concerns directly to Commissioner Rob Manfred.

The policy changes reflect a growing crisis at the intersection of legalized sports betting and athlete safety, as players across professional and college sports report systematic harassment from disgruntled bettors whose wagers have lost value due to athletic performance.

Giolito’s direct appeal to baseball’s highest authority underscores the severity of a problem that many fear could escalate to physical violence without meaningful intervention.

Key Takeaways

Policy Update: FanDuel implemented new Section 8.25 in June 2025, explicitly banning customers who harass athletes, coaches, or officials with account suspension or termination.
Direct Commissioner Appeal: Red Sox pitcher Lucas Giolito personally addressed MLB Commissioner Rob Manfred about daily harassment from angry bettors after every game performance.
Escalating Threats: Giolito warned Manfred that serious action may be needed before “a player gets assaulted in front of their apartment building by some disgruntled guy that lost a bet.”
Family Targeting: Harassment extends beyond players to include threatening messages directed at athletes’ girlfriends, wives, and family members.
Industry Response: The American Gaming Association praised FanDuel’s leadership in addressing athlete harassment through strengthened anti-abuse policies.
Enforcement Action: FanDuel banned a bettor in June who harassed Olympic champion Gabby Thomas at a Philadelphia track event after losing a parlay bet.
Systemic Problem: Studies show 40% of social media abuse directed at tennis players comes from angry gamblers, with similar patterns emerging across all professional sports.

Giolito’s Disturbing Reality: Daily Harassment After Every Game

Speaking on the “Baseball Isn’t Boring” podcast in July 2025, Giolito pulled back the curtain on a dark reality facing modern professional athletes. The 31-year-old right-hander revealed he receives threatening messages “after every game” from disgruntled bettors, regardless of his performance quality.

“I’m getting messages after every game. Even games where I pitch well, they’re mad because I hit the strikeout over instead of the under, or whatever the prop bet was,” Giolito explained. “These prop bets and all sorts of wild wagers. Individuals are placing hundreds of dollars on these outcomes, often risking money they can’t afford to lose due to the compulsive nature of gambling. They become frantic.”

The harassment pattern Giolito describes reflects the granular nature of modern sports betting, where individual player statistics -strikeouts, hits, runs scored, defensive plays – have become the basis for thousands of discrete wagering opportunities. This means that virtually every action an athlete takes during competition can directly impact someone’s financial outcome, creating unprecedented potential for targeted harassment.

The abuse extends far beyond Giolito himself, reaching his girlfriend and family members in a disturbing pattern that has engulfed professional sports in the betting era. This expansion of harassment to family members represents a particularly concerning escalation that has alarmed players across multiple sports and leagues.

Giolito’s concerns echo those of teammates like reliever Liam Hendriks, who faced death threats in May 2025 after allowing three earned runs against the New York Mets. The messages included personal attacks about Hendriks’ recent cancer diagnosis, with one individual threatening that he would “die from cancer” as punishment for the poor performance.

Direct Appeal to Commissioner Raises Unprecedented Alarm

Giolito’s decision to personally address Commissioner Rob Manfred about the harassment crisis demonstrates the severity of the situation and players’ growing frustration with the league’s response to gambling-related abuse. During their private conversation, Giolito posed a chilling question that stunned Manfred.

“Is it going to take a player getting assaulted in front of their apartment building by some disgruntled guy that lost a bet for real action to be taken?” Giolito asked the commissioner directly.

The pitcher’s appeal reflects growing frustration among players who feel Major League Baseball hasn’t adequately addressed the intersection of legalized gambling and athlete safety. Despite the league’s substantial partnerships with sportsbook operators and significant revenue from gambling-related advertising, players report feeling abandoned when confronting the negative consequences of betting integration.

Giolito, who has played for four different teams since 2023, emphasized that “the threats when a player doesn’t perform well – threats to their family, threats to their life – it’s getting very tiring.” His multi-team experience provides unique perspective on the universality of harassment across different markets and fan bases.

The fact that an active player felt compelled to escalate harassment concerns directly to the commissioner represents an unprecedented moment in baseball’s relationship with legalized gambling. Industry observers note that such direct appeals are extremely rare and typically reserved for the most serious systemic issues affecting player welfare.

FanDuel’s Policy Response: Section 8.25 Implementation

Following a series of high-profile harassment incidents across multiple sports, FanDuel updated its terms and conditions on June 24, 2025, to include explicit language addressing athlete harassment. The new Section 8.25 represents one of the industry’s first comprehensive policy responses to gambling-related athlete abuse.

The updated language states: “We may, in our sole discretion, suspend or terminate your Account and/or exclude you from the Services if we determine that you pose a threat to the safety of participants in a sporting event or discover that you engaged in the harassment of a sports official, coach, or any participant in a sporting event.”

This policy update was implemented alongside FanDuel’s routine address change notifications and represented a proactive response to mounting industry pressure from athletes, leagues, and advocacy organizations. The company communicated the change to customers via email, emphasizing their commitment to athlete protection and responsible gambling practices.

Cory Fox, Senior Vice President of Public Policy and Sustainability at FanDuel, explained the company’s rationale for the policy enhancement: “Many athletes are on social media, interacting with fans, and that has led to some really fun and entertaining experiences and bringing fans closer to the game, but it also allows fans to say, frankly, unacceptable things to athletes that are negative or harassing.”

Fox’s statement acknowledges the double-edged nature of social media accessibility in the modern sports landscape, where the same platforms that enable positive fan engagement also facilitate direct access for harassment and abuse.

Concrete Enforcement: The Gabby Thomas Incident

FanDuel’s anti-harassment stance moved beyond policy language to concrete enforcement actions in June 2025, when the platform permanently banned a bettor who harassed Olympic champion Gabby Thomas at a Grand Slam Track event in Philadelphia.

The incident involved an individual who filmed himself heckling Thomas during a race, then boasted online about “making Gabby lose by heckling her” to ensure his parlay bet would win. The bettor’s social media posts celebrating his harassment strategy attracted widespread condemnation and provided FanDuel with clear evidence of policy violations.

FanDuel’s response was swift and unequivocal: “We condemn in the strongest terms abusive behavior directed towards athletes. Threatening or harassing athletes is unacceptable and has no place in sports. This customer is no longer able to wager with FanDuel.”

The Gabby Thomas incident illustrates several concerning trends in gambling-related harassment:

Bettors physically attending events specifically to influence outcomes through disruption
Social media bragging about harassment tactics as gambling strategy
Targeting of individual athletes rather than teams or general performances
Cross-platform harassment extending from digital spaces to physical venues

The American Gaming Association publicly praised FanDuel’s handling of the situation, posting on LinkedIn that the company “recently strengthened their terms and conditions to address athlete harassment” and “is continuing to raise the bar on anti-harassment policies.”

Data Reveals Scope of the Crisis Across Sports

Recent comprehensive studies underscore the magnitude of gambling-related athlete harassment across professional and amateur sports, revealing patterns that extend far beyond individual incidents or specific leagues.

Professional Tennis: A Case Study in Systematic Abuse

Professional tennis has emerged as a particularly well-documented example of gambling-related harassment, with comprehensive data collection revealing the scope and intensity of bettor-driven abuse.

According to the 2024 WTA/ITF Threat Matrix Report:

40% of all social media abuse directed at professional tennis players originates from angry gamblers
458 tennis players received direct abuse or threats during 2024
Just 5 players received 26% of all detected abuse, indicating concentrated targeting of high-profile athletes
97 individual accounts were responsible for 23% of all detected abuse, showing repeat offender patterns
15 cases required escalation to law enforcement due to credible threats of violence

The tennis data reveals sophisticated harassment patterns, with bettors targeting players based on specific betting market outcomes rather than general match results. Players report receiving abuse for failing to cover point spreads, hitting specific statistical targets, or influencing prop bet outcomes through strategic decisions during matches.

College Athletics Under Unprecedented Pressure

The National Collegiate Athletic Association’s harassment analysis reveals that college athletes face unique vulnerabilities in the gambling-harassment ecosystem:

12% of social media abuse targeting college athletes comes directly from sports bettors
During March Madness 2024, 73% of gambling-related abuse occurred during the three-week tournament
Women athletes receive 59% more abusive messages than their male counterparts
Basketball players experience the highest harassment rates, followed by football and baseball players

College athletes face particular challenges because they lack the resources and support systems available to professional athletes while competing in high-stakes environments that generate substantial betting interest. Many report feeling helpless against harassment while being prohibited from accessing the gambling education and support resources available to professional players.

MLB’s Harassment Epidemic: Beyond Giolito

Giolito’s public disclosure has encouraged other MLB players to share their harassment experiences, revealing the systematic nature of gambling-related abuse across professional baseball:

Lance McCullers Jr.: The Houston Astros pitcher’s family received detailed death threats following poor performances, with harassers specifically referencing prop bet losses and demanding “payback” for lost wages.

Carlos Rodón: The New York Yankees pitcher’s wife has publicly shared vile messages received after her husband’s poor outings, including threats against their children and demands that Rodón “pay back” money lost on bets.

Christian Yelich: The Milwaukee Brewers outfielder described receiving online abuse as “a nightly thing” for most players, noting that harassment intensity correlates directly with team performance and betting market outcomes.

Liam Hendriks: Beyond the death threats related to his cancer diagnosis, Hendriks has reported receiving hundreds of harassing messages after poor relief appearances, many specifically referencing prop bet losses.

These cases reveal consistent patterns: harassment typically occurs within hours of poor performance, frequently references specific betting markets or outcomes, often includes personal threats, and regularly extends to family members and loved ones.

The Technology Behind Targeted Harassment

Modern sports betting infrastructure has created unprecedented opportunities for granular harassment through technological innovations that tie individual player actions to real-time financial outcomes.

Player Prop Betting Explosion

The proliferation of player-specific proposition bets has transformed every aspect of athletic performance into potential harassment triggers:

Pitcher-specific props: Strikeouts, earned runs, innings pitched, hits allowed
Batter-specific props: Hits, RBIs, runs scored, stolen bases, home runs
Defensive props: Fielding assists, errors, double plays turned
Game situation props: Performance in specific innings, with runners in scoring position, against certain opponents

This granularity means that virtually every action an athlete takes during competition can directly cause someone to lose money, creating thousands of potential harassment triggers per game.

Live In-Game Betting Integration

Real-time betting markets create immediate win-loss scenarios tied to individual player decisions:

Pitch-by-pitch outcomes generate instant financial consequences
At-bat results can swing large parlay bets in real-time
Defensive plays immediately impact multiple betting markets
Strategic decisions by players (stealing bases, taking pitches) directly influence betting outcomes

This immediacy has compressed the timeline between athletic performance and harassment, with players reporting receiving threatening messages within minutes of specific plays or decisions.

Social Media Accessibility

Modern social platforms provide direct communication channels between angry bettors and athletes:

Instagram direct messages enable private harassment
Twitter mentions and replies create public harassment platforms
TikTok comments provide video-based abuse opportunities
Facebook messages reach athletes through personal accounts

The combination of real-time betting outcomes and immediate social media access creates perfect conditions for impulsive, emotionally-driven harassment that can escalate quickly to serious threats.

Daily Fantasy Sports Integration

Daily fantasy platforms create additional harassment vectors by tying salary cap decisions and lineup choices to financial outcomes:

Player selection becomes personal financial decision for bettors
Performance variance directly impacts daily fantasy contest results
Salary value creates expectations for minimum performance levels
Ownership percentages in contests influence harassment intensity

Regulatory and Industry Response Initiatives

The gambling industry and regulatory authorities have begun implementing various measures to address athlete harassment, though many observers argue these efforts remain insufficient given the scope of the problem.

Enhanced Detection and Monitoring Systems

The professional tennis industry has emerged as a leader in systematic harassment detection through the implementation of Signify Group’s Threat Matrix service. This AI-powered monitoring system represents the most comprehensive approach currently deployed in professional sports:

1.6 million social media posts analyzed in 2024
8,000 abusive messages identified and categorized
4,200 individual accounts flagged for harassment behavior
Real-time monitoring across multiple social platforms
Human analyst verification of AI-detected threats

The system uses natural language processing to identify gambling-related abuse while distinguishing it from general criticism or fan disappointment. This technological approach provides a model that other sports are beginning to adopt.

Legislative Response at State Level

Several states have begun implementing legislative responses to gambling-related harassment, particularly focused on protecting college athletes:

New Jersey: Advanced comprehensive legislation in June 2025 to ban all college athlete proposition bets, citing harassment concerns as a primary driver. The bill passed the Assembly with bipartisan support and awaits Senate consideration.

Ohio: Eliminated all player-specific college wagering markets in response to documented harassment of student-athletes. The state’s casino control commission implemented emergency regulations removing these betting options.

Vermont and Maryland: Both states have prohibited college player prop bets and implemented enhanced penalties for operators who fail to prevent harassment of in-state college athletes.

Legislative proposals pending: At least eight additional states are considering similar measures, with particular focus on protecting student-athletes who lack the resources and support systems available to professional players.

Industry Self-Regulation Initiatives

Beyond FanDuel’s policy changes, other industry stakeholders have implemented various anti-harassment measures:

DraftKings: Enhanced its community guidelines to include explicit prohibitions on athlete harassment and implemented automated detection systems for threatening content.

BetMGM: Established partnerships with professional leagues to share information about harassing customers and coordinate response efforts.

The Social Promotional Games Association: Developed industry best practices for identifying and responding to gambling-related harassment, including cross-platform information sharing protocols.

U.S. Integrity’s Athlete Alert: Launched an anonymous reporting system specifically designed for college athletes to report harassment, threats, or other integrity concerns related to sports betting.

These initiatives represent important progress but remain voluntary and inconsistently implemented across the industry.

The Broader Challenge: Balancing Innovation and Athlete Safety

FanDuel’s policy response illustrates the complex challenge facing sports betting operators: maintaining user engagement and product innovation while protecting athletes from the negative consequences of those same innovations.

Continued Product Development

Despite harassment concerns, FanDuel and other operators continue expanding betting options that could increase harassment potential:

Celebrity partnerships with figures like Rob Gronkowski for parlay suggestions and betting content
Social sharing features that encourage transparency about betting outcomes and strategies
Live betting options that increase real-time engagement and emotional investment
Player prop expansions that create even more granular betting opportunities tied to individual performance

The Engagement Paradox

The same features that make sports betting engaging and profitable also create conditions for harassment:

Real-time results that create immediate emotional reactions
Social media integration that facilitates direct athlete contact
Personal stake in individual player performance through prop bets
Community features that can amplify negative sentiment

This paradox forces operators to carefully balance product innovation with athlete protection, often resulting in reactive rather than proactive policy approaches.

Revenue Considerations

The economic incentives in sports betting sometimes conflict with athlete protection goals:

Prop bet profitability is typically higher than traditional wagering markets
Engagement metrics improve with more granular, personal betting options
Customer acquisition benefits from viral social media content, including controversy
Revenue sharing with leagues creates complex stakeholder relationships

These economic realities complicate efforts to implement comprehensive harassment prevention measures that might reduce profitability or user engagement.

Looking Forward: Systemic Change or Continued Crisis?

Giolito’s direct appeal to Commissioner Manfred and FanDuel’s policy response represent important steps in addressing gambling-related harassment, but industry experts question whether these measures address the root causes of the problem.

Remaining Challenges

Several fundamental challenges continue to complicate harassment prevention efforts:

Cross-Platform Coordination: Current enforcement efforts typically focus on individual operators, allowing banned users to simply migrate to competing platforms and continue harassment behaviors.

Law Enforcement Integration: Most harassment falls below the threshold for criminal prosecution, creating a gap between policy violations and legal consequences that harassers learn to exploit.

Problem Gambling Integration: Much harassment stems from problem gambling behaviors, but most platforms lack integrated systems for identifying and treating the underlying addiction issues that drive harassment.

Industry-Wide Standards: The absence of consistent policies across all operators creates a patchwork of protections that sophisticated harassers can navigate and exploit.

Potential Solutions

Industry observers and athlete advocates have proposed several systemic approaches to harassment prevention:

Universal Identification Systems: Industry-wide databases that would prevent banned users from creating accounts with other operators.

Enhanced Legal Framework: Federal legislation specifically addressing gambling-related harassment with meaningful criminal penalties.

Mandatory Counseling: Requirements for operators to provide problem gambling counseling as an alternative to account closure for first-time harassment violations.

Athlete Compensation: Revenue-sharing arrangements that compensate athletes for the harassment risks created by prop betting markets.

Technology Solutions: Advanced AI systems that can identify and prevent harassment before it reaches athletes, rather than responding after the fact.

The Urgency Question

Giolito’s warning to Commissioner Manfred—that meaningful change may require “a player getting assaulted” before real action occurs—reflects the urgency many athletes feel about this growing crisis. Industry data suggests harassment intensity and frequency continue increasing despite policy changes and enforcement efforts.

Recent incidents have shown concerning escalation patterns:

Harassment extending from digital platforms to physical venues
Coordinated harassment campaigns targeting multiple family members
Doxxing incidents exposing athletes’ personal information
Physical confrontations at airports, hotels, and other public spaces

These escalations validate athletes’ concerns that current measures may be insufficient to prevent serious violence before comprehensive systemic changes are implemented.

Conclusion: A Critical Juncture for Sports Betting and Athlete Safety

The intersection of legalized sports betting and athlete safety has reached a critical juncture, with FanDuel’s policy changes representing both meaningful progress and a stark reminder of how far the industry still needs to advance to adequately protect the athletes who make sports betting possible.

Giolito’s decision to directly confront Commissioner Manfred about harassment reflects the frustration and fear experienced by athletes across professional sports. His stark warning about potential violence underscores the urgency that many players feel about implementing comprehensive solutions rather than continuing with piecemeal policy responses.

FanDuel’s leadership in strengthening anti-harassment policies provides a model for industry action, but the scope of the problem requires coordinated efforts across all operators, leagues, and regulatory authorities. The company’s willingness to ban customers and forfeit revenue demonstrates that meaningful harassment prevention is possible when operators prioritize athlete welfare.

However, the fundamental tension between betting product innovation and athlete protection remains unresolved. As long as individual player performance remains the basis for thousands of granular betting markets, athletes will face harassment risks that no single policy can completely eliminate.

The coming months will likely determine whether Giolito’s appeal to Commissioner Manfred catalyzes meaningful league-wide action or whether the crisis continues to escalate until the violence he warned about becomes reality. For the sports betting industry, the stakes extend beyond individual harassment cases to questions about the long-term sustainability and social acceptability of current business models.

As the industry confronts these challenges, FanDuel’s policy changes represent an important step forward while highlighting how much more work remains to be done to create a sports betting ecosystem that can thrive without systematically endangering the athletes who make it possible.

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