Mathew Bowyer, the bookmaker linked to Ippei Mizuhara, spoke out about the former interpreter's gambling habits in a recent podcast interview. Mizuhara, who previously worked for MLB star Shohei Ohtani, admitted to stealing nearly 17 million dollars to cover gambling debts. Bowyer stated that Mizuhara showed signs of a gambling problem within 30 days of their initial betting interactions.
According to the bookmaker, Mizuhara’s betting behavior was extreme and persistent. Bowyer described the volume of bets as erratic, noting that Mizuhara frequently chased losses by placing high-risk wagers. The bookmaker claims he had never witnessed such intense betting activity from a single individual.
E. Martín Estrada, the former U.S. Attorney for the Central District of California, offered a different perspective on the case. He stated he is not convinced that Mizuhara’s actions were purely the result of addiction. Instead, Estrada argued that Mizuhara identified a chance to enrich himself and acted upon it to exploit his position.
Mizuhara is currently serving a 57-month prison sentence in a federal facility after pleading guilty to bank fraud and tax-related charges. Bowyer also faced legal consequences, having served seven months of a year-long sentence for money laundering and running an illegal gambling business.
Beyond the individuals involved, this case led to significant regulatory action. Nevada casinos agreed to pay over 34 million dollars in fines for failing to prevent Bowyer from laundering millions of dollars through their systems. Bowyer is now permanently banned from entering Nevada casinos, a status established by the state Gaming Commission.

