Monday, June 29, 2026

Mathew Bowyer, Bookie at Center of Ohtani Scandal, to Plead Guilty

  • Ohtani’s former interpreter bet heavily with Bowyer’s operation.
  • Bowyer will plead guilty to three federal charges.
Kirby Lee-USA TODAY Sports

The bookie who fielded millions of dollars in bets unknowingly paid for by Shohei Ohtani  agreed to plead guilty to three federal charges Thursday. Mathew Bowyer, who took the action from Ippei Mizuhara, the interpreter who robbed Ohtani, admitted to running a longstanding bookmaking operation in the plea agreement. 

Next week, Orange County, Calif.–based Bowyer is set to plead guilty to charges of operating an unlawful gambling business, money laundering, and subscribing to a false tax return. The U.S. attorney’s office for the Central District of California announced the plea agreement.

Bowyer, 49, was at the center of several eye-popping allegations in the Ohtani case, and had long been on the federal government’s radar as it investigated illegal gambling in California. (The state is one of the few where gambling on sports is still against the law.) 

Mizuhara, using money he eventually admitted to stealing from Ohtani, bet an enormous amount with Bowyer. According to the charges against Mizuhara and Bowyer, the interpreter lost more than $180 million in bets with Bowyer, netting out to more than $40 million in debts to the bookmaker. Mizuhara stole at least $16 million from Ohtani to cover his debts. 

The investigation into Mizuhara and Bowyer turned up voluminous texts between the two men. Earlier this year, according to court documents, Bowyer texted Mizuhara, “Obviously you didn’t steal from him.” Mizuhara responded, “Technically I did steal from him. it’s all over for me.” 

According to the complaint against Mizuhara, Bowyer followed Ohtani around Southern California, texting the interpreter that he saw the Dodgers star with his dog and would approach Ohtani if Mizuhara didn’t answer his texts.

Earlier this year, ESPN reported that Bowyer “allowed people to believe” that Ohtani was his actual client, but an attorney for Bowyer said the two men had never met or interacted.

Bowyer faces heavy prison time, the federal government says. He is staring down up to 10 years on the money laundering charge, five on the gambling operation charge, and three for filing a false tax return. According to the plea agreement, he reported more than $600,000 in income in 2022, but actually made more than $4 million from his betting business. He now owes the feds more than $1.6 million in back taxes.

In May, ESPN reported Bowyer had laundered his gambling profits through casinos in California and Nevada, depositing the money in accounts and then cashing out chips at the casinos.

This field is for validation purposes and should be left unchanged.

Sign up for
The Memo Newsletter

Get the biggest stories and best analysis on the business of sports delivered to your inbox twice every weekday and twice on weekends.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Linkedin
Whatsapp
Copy Link
Link Copied
Link Copied

What to Read

After NFL and CFL Say No, UFL May Be Sorsby’s Best Option

The UFL appeared to confirm Sorsby would be eligible.

College Sports Roster Spending Soars Beyond $20.5M Rev-Share Cap

The $20.5 million rev-share cap was a new floor for roster costs.
Nike store

Nike’s Rumored China E-Commerce Gamble Could Be a Misstep

Nike will reportedly stop letting other companies sell its products online in China.
podcast thumbnail mobile
Front Office Sports Today

A Conversation with Tracy McGrady on Buying ABCD Camp, Investing in the Bills & More.

0:00

Featured Today

June 26, 2026

In an Era of $1,000 Tickets, $10 Watch Parties Bring Fans Together

Stadium watch parties now rival home-game experiences.
June 25, 2026

Italian Americans Have Severe World Cup FOMO

Bars and restaurants in Boston, Philly, and beyond are missing the Azzurri.
Indiana Fever guard Lexie Hull (10) celebrates a three-point basket Monday, June 22, 2026, during the game at Gainbridge Fieldhouse in Indianapolis. The Indiana Fever defeated the Phoenix Mercury, 86-77
June 24, 2026

Female Athletes Are Trying to Build the ‘Athleisure of Beauty’

“Performance cosmetics” have emerged alongside the women’s sports boom.
June 18, 2026

Why U.S. Open Host Sites Are on a 25-Year Plan

The U.S. Open has already picked out 22 future sites through 2051.
Kentucky Attorney General Russell Coleman sits for an interview at his office in Frankfort, Ky., on Dec. 18, 2025.

CFTC Sues Kentucky After State Takes Aim at Kalshi, Polymarket

Kentucky is the ninth state the CFTC has sued since April.
Reuters FILE PHOTO: Kalshi logo appears in this illustration created on April 22, 2026.
June 17, 2026

Kalshi CEO Downplays Polymarket Rivalry

Tarek Mansour says Polymarket’s scandals risk sullying the entire industry.
Kalshi's logo is displayed on a smartphone placed on a reflective surface onto which a betting curve is projected in Creteil, France, on March 9, 2026, during a major scandal and a $54 million lawsuit concerning bets related to recent strikes in Iran. (Photo by Samuel Boivin/NurPhoto)NO USE FRANCE
June 19, 2026

Kalshi’s Tarek Mansour Talks Giannis, Don Jr., Supreme Court

The Kalshi cofounder discussed critics, CFTC rulemaking, and more.
Sponsored

How Daktronics Is Reshaping the Modern MLB Ballpark Experience

The technology powering baseball’s next chapter.
In this photo illustration, a mobile device displays the Kalshi logo while a laptop displays the webpage of the prediction market platform in Copenhagen, Denmark, on February 10, 2026. (Photo by Kristian Tuxen Ladegaard Berg/NurPhoto)
June 11, 2026

CFTC’s Proposed Rules Won’t Quiet Prediction-Market Critics

Markets tied to physical altercations or referee decisions would be flagged.
Courtesy: Jake Epstein
June 10, 2026

Knicks Run Is New Front in the Kalshi-Polymarket Marketing War

Prediction-market platforms have capitalized on the Knicks’ Finals run.
Fanduel
June 8, 2026

FanDuel Is Latest Gambling Company to Cut Jobs

Sources tell FOS a few hundred people were laid off last week.
Reuters FILE PHOTO: Kalshi logo appears in this illustration created on April 22, 2026.
June 1, 2026

DraftKings Cofounder ‘Loves’ Prediction Markets Despite Attacks

Matt Kalish credits Kalshi with fighting legal and regulatory battles for the entire industry.