The file
Ippei Mizuhara
Photo: Moto "Club4AG" Miwa from USA, CC BY 2.0, via Wikimedia Commons
person

Ippei Mizuhara

Former Japanese-English interpreter for Shohei Ohtani

Entries
12
On the record
10
Stories
1
Latest entry
Mar 12, 2025

The record

Compiled by the MrScandal desk from the documents below ยท Desk editor Gustavs ฤ’rkลกฤทis-Kreicbergs ยท Nov 9, 2026

Ippei Mizuhara built a career as a baseball interpreter, first in Japan, where he moved in 2013 to work for a Japanese club, then as Shohei Ohtani's Japanese-English interpreter in Major League Baseball. His own lawyers describe him as also working as Ohtani's de facto manager and assistant, and in that role he helped Ohtani open a Bank of America account in 2018, the account he later took money from.

His own court filings set out the arc. He began regularly betting with a bookmaker in September 2021, and the presentence figures his lawyers accepted put the money taken from Ohtani's account at no less than $16,975,010, plus $4.1 million in income left off his 2022 tax return. The Dodgers fired him in March 2024 after an ESPN investigation, and he was arraigned on a federal complaint on April 12, 2024.

Through counsel he apologized to Ohtani, the Dodgers and Major League Baseball and said he would plead guilty. The probation office recommended 48 months and his lawyers asked for 18, citing a gambling addiction. U.S. District Judge John W. Holcomb imposed 57 months, three years of supervised release and restitution of nearly $17 million to Ohtani and $1.1 million to the IRS. His attorney said he expected Mizuhara to be deported later.

Roles and honours on the record

  • 2013 Interpreter for a Japanese professional baseball team source
  • 2018-2024 Japanese-English interpreter and de facto manager and assistant to Shohei Ohtani, with the Los Angeles Angels and then the Los Angeles Dodgers source
  • 2024-2025 Defendant, United States v. Mizuhara, U.S. District Court for the Central District of California, No. 8:24-cr-00054-JWH source

Every entry, newest first

Last entry Mar 12, 2025
  1. Filed

    Mizuhara's attorney filed a request, kept under seal, to move his prison surrender date; the judge granted it. Ippei Mizuhara: 57 months, $18M+ owed to Shohei Ohtani and IRS

  2. Ruled

    Judge sentenced Mizuhara to 57 months in prison plus three years supervised release and ordered more than $18 million in restitution to Ohtani and the IRS. Ippei Mizuhara: 57 months, $18M+ owed to Shohei Ohtani and IRS

  3. Admitted

    Mizuhara pleaded guilty to bank fraud and to filing a false tax return. Ippei Mizuhara: 57 months, $18M+ owed to Shohei Ohtani and IRS

  4. Filed

    Federal prosecutors in Southern California charged Mizuhara with one count of bank fraud. Ippei Mizuhara: 57 months, $18M+ owed to Shohei Ohtani and IRS

  5. Reported

    After the Dodgers' season opener in Seoul, Mizuhara told players in a clubhouse speech that Ohtani had sent money to cover his gambling debt. Ippei Mizuhara: 57 months, $18M+ owed to Shohei Ohtani and IRS

Stories in this file

The record, entry by entry

  1. 2013 Filed He moved to Japan to work as an interpreter for a Japanese baseball team, according to his sentencing memorandum. Ippei Mizuhara's sentencing memorandum, C.D. Cal. No. 8:24-cr-00054, Dkt. 71 (via Courthouse News)
  2. 2018 Filed He helped Ohtani open a Bank of America account and interpreted for him when the bank employee provided the login information, his lawyers wrote. Ippei Mizuhara's sentencing memorandum, C.D. Cal. No. 8:24-cr-00054, Dkt. 71 (via Courthouse News)
  3. 2021-09 Admitted He began regularly placing sports bets with a bookmaker, quickly fell into debt and illegally accessed Ohtani's bank account, his own sentencing filing states. Ippei Mizuhara's sentencing memorandum, C.D. Cal. No. 8:24-cr-00054, Dkt. 71 (via Courthouse News)
  4. 2024-03 Reported The Los Angeles Dodgers fired him after an ESPN investigation into the case. ESPN report
  5. 2024-04-12 Filed He was arraigned on the federal complaint and, in a statement through counsel, confirmed he was cooperating with the government and intended to plead guilty, and apologized to Ohtani, the Dodgers and Major League Baseball. Ippei Mizuhara's sentencing memorandum, C.D. Cal. No. 8:24-cr-00054, Dkt. 71 (via Courthouse News)
  6. 2025-01-23 Filed His lawyers asked for an 18-month sentence, citing gambling addiction, against a probation office recommendation of 48 months. The filing accepted presentence figures of at least $16,975,010 taken from Ohtani's account and $4.1 million omitted from his 2022 tax return. Ippei Mizuhara's sentencing memorandum, C.D. Cal. No. 8:24-cr-00054, Dkt. 71 (via Courthouse News)
  7. 2025-02-06 Ruled U.S. District Judge John W. Holcomb sentenced him to 57 months in prison and three years of supervised release, with restitution of nearly $17 million to Ohtani and $1.1 million to the IRS. In court he said he was truly sorry to Ohtani. ESPN report

Documents

Sources behind this file

  1. The Athletic report on Mizuhara beginning his sentence ยท Report, Jun 16, 2025
  2. ESPN report on Mizuhara's prison surrender date ยท Report, Mar 31, 2025
  3. The Athletic report on Mizuhara's 57-month sentencing ยท Report, Feb 6, 2025
  4. Mizuhara's sentencing memorandum, U.S. District Court, Central District of California ยท Court filing, Jan 23, 2025
  5. The Athletic report on Mizuhara's guilty plea and MLB clearing Ohtani ยท Report, Jun 4, 2024
  6. Los Angeles Times report: Ohtani's lawyers accuse interpreter of 'massive theft' ยท Report, Mar 20, 2024

Connected files

  • Major League Baseball ยท North Americaโ€™s oldest major sports league and the premier baseball competition, culminating in the World Series. ยท named in the record
  • ESPN ยท Disney-owned sports network and home of Monday Night Football ยท named in the record
  • Internal Revenue Service ยท The US federal agency that collects income taxes ยท named in the record