Matt Bowyer Faces August Sentencing in Ohtani-Mizuhara Gambling Scandal
Matt Bowyer, a prominent illegal bookmaker linked to the high-profile Shohei Ohtani and Ippei Mizuhara scandal, is set to face sentencing in late August 2025, following a deal with federal prosecutors to expedite his case.

Originally scheduled for October, the sentencing for Bowyer, who pleaded guilty to operating an illegal gambling business, money laundering, and tax evasion, ends a critical chapter in one of the largest sports betting scandals in recent U.S. history.
With a client list exceeding 700 and wagers totaling $325 million, Bowyer’s operation drew national attention due to its ties to Mizuhara, Ohtani’s former interpreter, who stole $17 million from the baseball star to cover gambling debts.
Guilty Plea and Charges
In August 2023, Bowyer, 49, admitted guilt to three federal charges in a Santa Ana, California, courtroom: running an illegal gambling operation, transactional money laundering, and filing false tax returns. “I was running a big operation, I knew the risks. I have to be a man and deal with it,” Bowyer told iGB, expressing relief at taking responsibility.
Facing up to 18 years in prison, his attorney, Diane Bass, initially suggested a reduced sentence of 30 to 37 months due to cooperation with authorities.
However, the new agreement may result in a slightly harsher penalty. Bowyer’s operation, spanning Southern California and Las Vegas, handled bets from over 700 clients, including Mizuhara, who placed 19,000 wagers, accruing $40 million in debts.
Connection to Ohtani and Mizuhara
The scandal erupted when Mizuhara, Ohtani’s former interpreter, admitted to embezzling $17 million from the Los Angeles Dodgers star to pay Bowyer for gambling losses. Mizuhara, sentenced to 57 months in prison, still owes Bowyer an estimated $23 million, unlikely to be repaid.
Federal investigations by the DOJ and MLB cleared Ohtani of any involvement, declaring him a victim of fraud. Despite this, conspiracy theories persist, fueled by figures like former MLB manager Ozzie Guillen, who falsely claimed, “Everyone knows that Shohei Ohtani gambled and was protected,” in a Puro Beisbol interview.
Bowyer, who never met Ohtani, maintained he dealt only with Mizuhara, often via text or in-person meetings that began at a 2021 San Diego poker game.
Bowyer’s money laundering activities implicated major Las Vegas casinos. Resorts World Las Vegas (RWLV) faced a $10.5 million fine from the Nevada Gaming Commission, the second-largest in state history, for allowing Bowyer to gamble 80 times over 15 months, losing $7.9 million, and failing to verify his funds’ source.
Bowyer funneled at least $9.34 million to “Casino A” (widely believed to be RWLV). His wife, Nicole, employed as his personal host at RWLV, earned $165,000 in 2022 and $501,000 in 2023 in commissions, later accepting a five-year ban on her agent license. MGM Resorts was fined $8.5 million for similar violations, having allowed Bowyer to wager 300 times before banning him in 2018.
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