Friday, May 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

Aug 17, 2025; Harrison, New Jersey, USA; A general view shows Sports Illustrated Stadium and Gotham FC logos before the game between Gotham FC and the Houston Dash.
exclusive

Several Longtime Writers Laid Off at Sports Illustrated

Writers Greg Bishop and Michael Rosenberg were laid off in a round of cuts on Friday.
May 19, 2023; Washington, District of Columbia, USA; Washington Mystics forward Elena Delle Donne (11) talks with New York Liberty forward Breanna Stewart (30) prior to the opening tip-off at Entertainment & Sports Arena.
exclusive

New WNBA CBA Will Pay $14M to Retired Players

The WNBA and WNBPA announced the full CBA was finalized Friday.
Mar 3, 2025; Miami, Florida, USA; Miami Heat guard Terry Rozier (2) warms up prior to the game against the Washington Wizards at Kaseya Center.

Feds Say Terry Rozier Took $70K Bribe in Sports Betting Case

Rozier’s attorney says it’s “all just a misplaced effort to make something stick.”
May 10, 2026; Chicago, IL, USA; Rehearsal before the 2026 NBA Draft Lottery at Navy Pier. Mandatory Credit: David Banks-Imagn Images

NBA Approves New ‘3-2-1’ Draft Lottery System

The new system will go into effect for the 2027 draft.

Featured Today

May 23, 2026; Anaheim, California, USA; Fans participate in a tarp off during a MLB game between the Los Angeles Angels and the Texas Rangers at Angel Stadium

‘Tarps Off’: How Shirtless Fans Took Over MLB

The viral movement began with the SFA club baseball team.
Apr 6, 2026; Arlington, Texas, USA; Seattle Mariners catcher Cal Raleigh (29) walks to the on deck circle during the game against the Texas Rangers at Globe Life Field
May 28, 2026

Why Ballparks Are Louder Than Ever

Some stadiums sound like veritable nightclubs. How did we get here?
May 24, 2026; Evanston, IL, USA; Northwestern Wildcats attack Kathryn Ratanaproeksa (13) shoots against the North Carolina Tar Heels during the first half at Martin Stadium
May 26, 2026

Can Women’s Lacrosse Buck the Trend in College Sports?

The sport is fighting to prove its worth in the revenue-sharing era.
May 22, 2026

Big Money on the Line on Premier League’s Final Day

Arsenal has won the title, but millions are still at stake.

Trump Decries Prediction-Market Detractors As ‘Scum’

The president’s son is an investor in Polymarket and an advisor to Kalshi.
Mark Cuban
May 20, 2026

Mark Cuban: ‘Betting Isn’t the Problem’

These wagers have been behind the recent MLB and NBA gambling scandals.
May 24, 2026

Sportradar Hit With Lawsuit Over Alleged Illegal Gambling Ties

The suit alleges investors were harmed by shady overseas business conduct.
Sponsored

The Hidden Economy of Race Weekend

Learn more about the Vintage Flying Museum and how Spectrum Business is helping them achieve their business goals while fueling their dreams.
Jun 12, 2025; Washington, DC, USA; Gov. Tim Walz (D-MN), left, alongside Gov. JB Pritzker (D-IL), right, and Gov. Kathy Hochul (D-NY), not shown, testify before the House Committee on Oversight and Government Reform during a hearing on state immigration enforcement policy in Washington, D.C., on June 12, 2025.
May 19, 2026

Trump Admin Sues Minnesota to Block Prediction-Market Ban

Minnesota is the sixth state the federal regulator has sued.
DraftKingsApp
May 18, 2026

DraftKings Cofounder: Kalshi Is Years Away From Competitive Product

Kalshi responded with a gif from the movie “Mean Girls.”
May 9, 2024; Columbus, OH, USA; Sports are shown on TVs behind the bar as guests enjoy the grand opening of DraftKings Sports & Social in the Short North. Though there are no on-site betting windows, eligible customers can place bets through the DraftKings app.
May 15, 2026

Gambling Layoffs Pile Up As Sports Betting Industry Recalibrates

Penn Entertainment headlines three companies with layoffs this week.
exclusive
May 14, 2026

Polymarket’s Soccer Spree Continues With Serie A Deal

It’s the third big soccer deal Polymarket has reached this year.