Friday, August 7, 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

Sports are shown on TVs behind a bar as guests enjoy the grand opening of DraftKings Sports & Social in Ohio.

DraftKings, FanDuel Downplay Prediction-Market Cannibalization

Traditional sportsbooks have a new set of competitors.
President Donald Trump waves as he leaves Trump International Golf Club on March 28, 2026, in West Palm Beach, Florida.

Trump’s Growing Pro Golf Influence on Display at Bedminster

Trump Bedminster is hosting LIV Golf New York this week.
U.S. Senator Ted Cruz (R-TX) talks to reporters at the U.S. Capitol in Washington, D.C., U.S., August 6, 2026.

College Sports Bill Faces Steep Hurdles Before August Recess

The Congressional Black Caucus said it would not support the bill.

Money Suddenly Floods NFL’s Running Back Market

The long-overlooked position gets a big jolt of new energy. 
podcast thumbnail mobile
Front Office Sports Today

8/7/26 – Aikman and Buck Talks, Fox Won’t Renegotiate NFL Rights Until 2028, and Yankees’ Polymarket Deal

0:00

Featured Today

Joey Spallina of the Maryland Whipsnakes

How Eye Black Became ‘War Paint’ on the Field

“You’re going into battle, doing something you only do on game days.”
August 6, 2026

Tom Brady Explains His Aggressive Push Into Trading Cards

Brady talked to FOS about his eponymous card company.
FILE PHOTO: Cricket - Indian Premier League - IPL - Mumbai Indians v Chennai Super Kings - Wankhede Stadium, Mumbai, India - April 23, 2026 Mumbai Indians' Suryakumar Yadav in action
August 5, 2026

India Is Stealing Cricket’s Throne From England and Australia

India’s insatiable appetite for cricket has shifted the traditional locus of power.
WPBL
July 30, 2026

Who’s Playing Women’s Professional Baseball?

Sixty players from 11 countries are descending on Illinois for six weeks.
Tom's Watch Bar
July 17, 2026

Sports Bars Are Cashing In From Summer of Soccer

The World Cup has brought a windfall to America’s biggest sports bars.
Fanduel logo appears in this illustration taken April 22, 2026.

Gambling Industry Gears Up for ‘Arms Race’ This NFL Season

“Competition is fierce,” BetMGM CEO Adam Greenblatt said.
July 28, 2026

NBA, MLB Want More Say in Prediction Markets

The NBA said a new rules proposal “falls well short.”
July 30, 2026

WNBA Posts, Deletes Video of Apparent Bueckers-Reese Bet

The CBA includes strict prohibitions against players wagering on games.
Sponsored

Saints Great Turns to Ownership

Marques Colston discusses his Champions Fund launch and finding success after football.
Feb 5, 2026; San Francisco, CA, USA; A NFL shield logo at the NFL Honors Red Carpet before Super Bowl LX at Palace of Fine Arts.
July 28, 2026

NFL Sounds Alarm on ‘Objectionable’ Prediction Markets

The league flagged a number of concerns as the deadline for public comments hit.
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)
July 24, 2026

Kalshi Says Screenshot in Netflix Trailer Was ‘Fabricated’

The prediction-market platform is demanding Netflix take the trailer down immediately.
May 7, 2026; Oklahoma City, Oklahoma, USA; Los Angeles Lakers forward LeBron James (23) reacts after a play against the Oklahoma City Thunder in the first half during game two of the second round of the 2026 NBA Playoffs at Paycom Center. Mandatory Credit: Alonzo Adams-Imagn Images
July 24, 2026

Prediction Markets Had No Clue Where LeBron Was Going

Philadelphia’s chances on Kalshi spiked just before the news broke.
Joey Spallina (#22) of the Maryland Whipsnakes during the 2026 PLL Regular Season, The Week 10 match up of The Maryland Whipsnakes and The Utah Archers at Peter Barton Lacrosse Stadium, Denver, Colorado. On Saturday, July 25th, 2026
July 21, 2026

PLL Quietly Struck Exclusive Deal With Polymarket

The deal with the Premier Lacrosse League was signed earlier this year.