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MLB Survey Finds Bettor Harassment Reaching Most Players and Their Families

An Athletic survey found 81 of 100 anonymous MLB players had been confronted or contacted by bettors over their performance.
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Written by JD Daniels Senior Sportsbook Analyst
Updated: Aug 31, 2026

Key Points

  • Players described incidents ranging from hostile messages and threats to repeated $3,000 Venmo requests tied to losing parlays.
  • Bettor harassment has extended beyond players themselves, with some saying family members have also been contacted or targeted.
  • MLB and the MLBPA have already negotiated specific protections against betting-related abuse, including club fan policies and a player safety hotline.
  • Some sportsbooks are moving toward stronger account enforcement, with Fanatics backing a system designed to identify abusive bettors across participating operators.

MLB Players Say Betting Abuse Follows Them Off the Field

The Athletic’s Aug. 27 survey of 100 anonymous MLB players across 23 teams found that 81 had been confronted or contacted by a disgruntled bettor over the outcome of an outing. 

The responses described everything from hostile messages after games to bettors tracking down players’ family members and demanding money after losing wagers.

One of the stranger examples involved an American League East pitcher who said a bettor repeatedly sent him $3,000 Venmo requests after parlays involving his performances lost. Other players said the volume of betting-related messages had pushed them off social media entirely.

The harassment does not stop with the player

Several players described bettors finding relatives when they could not reach the player directly. Others reported messages that went well beyond complaining about a blown parlay and included threats against players and their families.

The survey is a sample of 100 players rather than a league-wide census, so 81% should not automatically be treated as the precise harassment rate across all of MLB. Even with that limitation, 81 affirmative responses make it difficult to dismiss betting-related abuse as something only a handful of high-profile players encounter.

MLB and the MLBPA already have protections in place

MLB and the MLBPA anticipated some of this when negotiating the current Basic Agreement. Its sports betting provisions require clubs to include a prohibition against “betting-related, abusive fan speech and behavior” directed at players, their families, club personnel or umpires.

The agreement also calls for a joint safety hotline where players and family members can report threats or other inappropriate betting-related contact. MLB and the union can then determine further action, including contacting law enforcement with the player’s permission. It also bars player-specific betting lines from being displayed on stadium videoboards or signage during games and pregame warmups.

While those protections may address player safety and behavior inside the baseball ecosystem, they do not, by themselves, create a nationwide system for removing abusive customers from betting accounts.

Fanatics is pushing account enforcement further

Fanatics Sportsbook announced a more aggressive approach in June through its Bad Actor Program with Integrity Compliance 360 and Signify Group. 

The system combines IC360’s ProhiBet BA technology with Signify’s Threat Matrix to identify abusive or threatening conduct directed at athletes, coaches and officials across major social platforms.

Fanatics said it can suspend or permanently terminate customers found to have engaged in abusive, threatening or harassing conduct. The program is also designed to allow evidence and names to be shared with other participating betting operators.

Fanatics Betting and Gaming CEO Matt King said in the announcement that “there is no sports betting potential loss that should embolden a sports betting customer to threaten or harass an athlete online.” 

Fanatics was the first legal betting operator announced as part of the network, meaning the cross-operator component will depend on other books joining.

Why This Matters For Bettors

JD Daniels
Senior Sportsbook Analyst

For bettors, the consequences of crossing the line are becoming much more tangible. Losing an account over harassment is already possible at an individual operator, and the industry is now building infrastructure that could allow the same conduct to follow a customer beyond one sportsbook.

There is already a regulatory model for taking that further. Ohio law specifically allows the Casino Control Commission to place someone on its sports gaming exclusion list for threatening violence or harm against a person involved in a sporting event when the threat is related to sports betting. Every licensed operator in the state must then take reasonable steps to prevent that person from wagering. The law also includes notice and hearing procedures before an exclusion becomes final.

That is considerably more serious than getting blocked by a player on Instagram. A bettor who makes a threat can potentially lose access to every regulated sportsbook in a jurisdiction.

The bigger industry question is whether more states adopt that approach or whether operators build their own shared exclusion system first. Fanatics and IC360 are effectively testing the private-sector version: identify abusive customers, document the conduct and make that intelligence available to other operators willing to participate.

There are legitimate bettor-protection questions attached to that model as it grows. Shared exclusions need clear evidentiary standards, reliable identification and some process for dealing with mistakes or disputed allegations. Turning sportsbook account access into an industry-wide privilege makes those safeguards more important, particularly once data starts moving between competing operators.

Player props could also face renewed scrutiny if harassment continues. Many of the incidents described in the survey involved bettors blaming an individual player for killing a wager or parlay. That does not establish that props cause harassment, but it gives leagues, unions and regulators another reason to examine markets that attach a direct financial outcome to one athlete’s performance.

For regulated betting companies, there is also a reputational problem to solve. Legal operators have spent years selling regulation as the safer alternative to offshore betting. Allowing customers to threaten athletes without meaningful consequences would make that argument considerably harder to defend.

What Happens Next

The immediate thing to watch is whether other sportsbooks join the Fanatics, IC360 and Signify Bad Actor Program. A network involving several major operators would give cross-platform exclusions far more bite than a policy enforced by one book.

MLB and the MLBPA have also agreed to revisit emerging sports betting issues as part of their regular discussions. If player complaints keep piling up, bettor exclusions and the treatment of player-specific markets are likely to receive more attention from leagues, operators and state regulators.

JD Daniels Profile Image
JD Daniels
Senior Sportsbook Analyst

JD has been betting since 2009, back when his bookie was a guy named Vin who ran lines out of Philly. He survived the sketchy offshore days (barely) and made the jump to regulated sportsbooks the second New Jersey legalized in 2018. Since then, he’s turned hunting bonuses and exploiting odds boosts into an art form.

These days, JD specializes in helping new bettors skip the rookie mistakes, as well as showing seasoned ones how to play the promo game like a pro. If there’s a bonus to be had or a line that doesn’t look right, JD’s probably already on it.