How Ippei Mizuhara descended into a sports betting nightmare
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Paula Lavigne, ESPN Investigative Reporter
In their complaint filed Thursday, federal investigators said they had conducted forensic reviews of the phone of Shohei Ohtani‘s former interpreter, Ippei Mizuhara, as well as devices belonging to “Bookmaker 1,” assumed to be Southern California bookie Mathew Bowyer, and “Bookmaker 2,” an associate of Bowyer’s.
Prosecutors accused Mizuhara of bank fraud and said he stole more than $16 million over several years from Ohtani. Before he was fired by the Los Angeles Dodgers on March 20, Mizuhara had interpreted for Ohtani since the superstar moved to the United States in 2018.
Texts among the parties, as laid out in the 37-page complaint, depict Mizuhara’s apparent descent into an uncontrolled sports betting addiction, and the bookie who kept extending his credit as long as Mizuhara covered his losses.
Getting started
Mizuhara has said he met Bowyer at a poker game in San Diego in 2021. According to the complaint, on or about Sept. 8, 2021, “Bookmaker 2” provides Mizuhara an account number, password and URL for an illegal betting website. About two weeks later, Mizuhara messages Bookmaker 2: “Ive just been messing around with soccer, theres games on 24/7 lol. I took UCLA but they lost outright!!!”
The same day, Mizuhara messages Bookmaker 2: “How does the withdrawing and paying work?” Bookmaker 2 responds later that day, “He pays and collects as the week ends Sunday night[.] Whatever you are up or down Sunday night you pay or receive[.] Last week you were down and he rolled it as hes ok with it[.] I say have a settle figure[.] Meaning pick a number you want to settle at either way[.]”
On Oct. 27, 2021, Bookmaker 2 messages Mizuhara: “[Bowyer] asked me to reach out to you . . . he sees you playing and wants to settle this by tomorrow[.] I can meet you or one his runners can.” Mizuhara responds, “I’m back in Anaheim now, is there any way to pay [Bowyer] via credit or debit card . . . I can wire the amount to his bank account. Do you know what bank he uses?”
Through the fall, text traffic indicates Mizuhara struggling to transfer funds to cover his debt because of bank limits or other issues. On or about Nov. 9, he tells Bookmaker 2: “tried almost every option possible and none of it is working. … this is super stressing.”
The next day, he tells Bookmaker 2 that he is “able to send 40k,” adding that it looks as if the method works “but I can only send 40k at a time.”
Losses mount
The federal complaint indicates Mizuhara’s losses mounted almost immediately. He repeatedly asks the bookies to “bump” his account, or increase his line of credit.
On Jan. 2, 2022, Mizuhara asks Bookmaker 2 if [Bowyer] could “reload my account? I lost it all.” Bookmaker 2 responds, “[Bowyer] bumped you 50k.” Thirteen days later, Mizuhara texts Bookmaker 2 again: “F— I lost it all lol . . . can you ask [Bowyer] if he can bump me 50k? That will be my last one for a while if I lose it.”
By Feb. 4, 2022, Mizuhara texts: “I made another transfer for 300k today since I lost the other 100k already.” Later that day, he confirms, “Wire went through!”
Over the next two years, according to the complaint, Mizuhara averaged 25 bets per day, ranging from $10 to $160,000 per bet, between December 2021 and this January — some 19,000 bets in all. His texts during this time show increasing desperation to catch up.
Some highlights of that time:
March 10, 2022: Mizuhara messages Bowyer asking him to reduce his credit from $300,000 to $100,000. “I’ll get too reckless with 300,” he says.
May 2022: Text messages from Mizuhara indicate he’s on a “bad run.” Despite Mizuhara owing Bowyer over $1 million, Bowyer continually increased Mizuhara’s betting limits, investigators said.
Nov. 14, 2022: Mizuhara texts Bowyer: “I’m terrible at this sport betting thing huh? Lol . . . Any chance u can bump me again?? As you know, you don’t have to worry about me not paying!!”
Dec. 9, 2022: Mizuhara texts Bowyer: “Can u bump me last 200? I swear on my mom this will be the last ask before I pay it off once I get back to the states. Sorry for keep on asking. . . .” Bowyer responds: “Np done bud. Merry Christmas.”
May 20, 2023: Bowyer texts Mizuhara: “I know you’ve been on a bad run. I don’t mind bumping u, I just want to verify that you can send at least 2M on June 1.”
June 22, 2023: Mizuhara texts Bowyer: “I got my ass kicked again lol . . . . Any chance I can get one last bump? This will be my last one for a while if I lose it. . . .” Bowyer responds: “Ok bud. I just want to be able to communicate with my partner so he knows expectations. If I can assure him that minimum 500 will be sent every week I can do the bump to whatever you want? It’s just imperative that the 500 is sent every week as you can imagine the figures are very high and just don’t want to not be able to deliver what I tell him[.] FYI I have already paid out of my pocket to him half of the balance that is on the account so whatever is lost every week I have to give him half of the balance that’s why I’m asking these direct important questions.”
June 24, 2023: Mizuhara texts Bowyer: “I have a problem lol. . . . Can I get one 13 last last last bump? This one is for real. … Last one for real[.]” Bowyer responds, “Done. I have the same problem. To be honest with you Ippie, as long as you can guarantee the 500 every Monday I’ll give you as much as you want because I know you’re good for it[.] again I just have to clean it up with my partner and that’s one reason why I was asking before.”
In the complaint, an investigator testified that wagers for Mizuhara’s account, “35966” as reflected on a bookie’s spreadsheet, reflect total winning bets of about $142 million, total losing bets of about $183 million, leaving a total negative balance of about $40.7 million.
Paybacks and veiled threats
According to the complaint, Mizuhara was attempting to pay back his debt from Ohtani’s account in a series of weekly $500,000 transactions, but after making some payments he stops and the tenor of texts with Bowyer shifts.
On June 20, 2023, he texts Bowyer: “It looks like I can only send 500 per week. … I put in a wire for 500 earlier today so it should be in your account by tomorrow. . . . does 500/week work for you?”
Federal authorities raid Bowyer’s house in October and seize cash, computers and phones, according to a search warrant obtained by ESPN. On or about Nov. 17, 2023, Bowyer texts Mizuhara: “Hey Ippie, it’s 2 o’clock on Friday. I don’t know why you’re not returning my calls. I’m here in Newport Beach and I see [Ohtani] walking his dog. I’m just gonna go up and talk to him and ask how I can get in touch with you since you’re not responding? Please call me back immediately.”
Two days later, Mizuhara texts Bowyer: “I’m gonna be honest, I ended up losing a lot of money on crypto the last couple years and I took a huge hit obviously with the sports too. . . . Just wanted to ask, is there any way we can settle on an amount? I’ve lost way too much on the site already . . . of course I know it’s my fault.”
On Dec. 15, Bowyer texts Mizuhara, stating “I know ur busy but u Need to show some respect. I put my neck out here. Call me by Tonight. I don’t care what time or how late it is.” Mizuhara responds the same day: “I’m so sorry bro . . . I really don’t mean to disrespect you at all I promise . . . it’s just been super super busy . . . and I’ve got other issues on the side going on too. everything has just been really really tough recently.”
This past Jan. 6, the complaint states, Bowyer texts Mizuhara: “you’re putting me in a position where this is going to get out of control. If I don’t hear from you by the end of the day today it’s gonna [sic] be out of my hands.” Mizuhara responds: “My bad man. . . . I just got back from Japan two days ago and I’m leaving tomorrow again . . . I’ll be back in mid January. To be honest with you, I’m really struggling right now and I need some time before I start to make payments.”
From January to March, Mizuhara spends about $325,000 of Ohtani’s money on approximately 1,000 baseball cards, and has them mailed to the Dodgers clubhouse under the alias “Jay Min,” the filing says. Mizuhara buys the memorabilia, which included cards for Yogi Berra, Juan Soto and Ohtani, with the intent to resell it, according to the affidavit.
On March 20, news breaks that at least $4.5 million was transmitted from Ohtani’s account to Bowyer’s operation. Mizuhara first tells ESPN that Ohtani paid his debts before changing his story hours later to say Ohtani had no knowledge of his gambling. Mizuhara asks Bowyer if he has seen the media reports. Bowyer responds, “Yes, but that’s all bulls—. Obviously you didn’t steal from him. I understand it’s a cover job I totally get it,” Mizuhara responds, “Technically I did steal from him. it’s all over for me.”
ESPN’s Tisha Thompson contributed to this report.
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Michael Rothstein
The Trump administration’s 2026 fiscal budget request to Congress eliminates major federal funding for traumatic brain injury (TBI) research and education, potentially undercutting efforts to address head injuries in sports, particularly at the high school and youth levels.
The White House’s proposed budget, released Friday, includes eliminating the Centers for Disease Control and Prevention umbrella agency responsible for TBI research, including the $8.25 million marked for brain injury research and public education about the dangers of concussions. The CDC is facing $3.59 billion in budget cuts.
Although the president proposes the federal budget, it is up to Congress to approve a final budget bill, so the TBI program could be restored or moved to a different agency. The White House did not respond to an ESPN request for comment.
The budget proposal comes after the CDC on April 1 placed all five staffers devoted to administering the government’s main traumatic brain injury program on paid administrative leave, CDC employees told ESPN. Paid administrative leave means the workers are still government employees.
The budget cuts would “roll back decades of progress,” said Dr. Owen Perlman, a brain injury specialist and board member of the Brain Injury Association of America.
Among the items targeted is Heads Up, a concussion-prevention program for youth and high school coaches, athletic trainers and other sports officials. The CDC staffers put on leave administered the program. Forty-five states participate in the program to varying degrees, a CDC official said, asking not to be identified.
Staffers interviewed by ESPN declined to speak on the record, citing fears of administration retribution.
“We’re really worried about the hundreds of thousands of coaches who have to take this training,” the CDC official said. “This is really built in, and we’ve lost the whole team” behind the program.
Some Heads Up training is part of coaches’ and other sports officials’ state compliance requirements. The CDC official said hundreds of email queries are arriving every week asking how to comply as the federal program shuts down. The Heads Up website says more than 10 million people have participated in its online training programs.
Congress first approved TBI research funding in 1996. Legislation to keep the program going expired at the end of 2024, and a House bill to renew it has yet to advance out of committee.
In a 2018 CDC survey, 12% of adult respondents reported experiencing a head injury in the previous 12 months, including but not limited to sports-related activities. A follow-up study was being prepared when the staffers were placed on leave. The research data was part of a program to measure TBI prevalence and boost prevention, care and recovery efforts.
The Heads Up website remained active Monday but offered no clues regarding the program’s endangered status.
“In the last month, I don’t think the public has felt an impact,” a laid-off CDC employee said. “But when those websites, trainings and materials get pulled down or when they can’t be updated, I think that’s when the public will feel it.”
In the proposed White House budget, the National Institutes of Health would retain an institute devoted to overall brain research, although the name would slightly change. The institute focuses on medical issues such as stroke and migraines, and it’s unclear whether TBI programs would be absorbed into it.
Hospitals and universities conducting TBI research funded by the CDC are bracing for potential funding cutbacks.
“We might not [get] the next year of renewal or the next wave of funding. And that’s sad and scary and impactful for all kinds of people, including myself in this project,” said Christine Baugh, an assistant professor at the University of Colorado’s School of Medicine who is studying how parents decide whether to let their children play contact sports and whether brain-injury awareness campaigns influence their decisions.
On April 23, the National Academy of Sciences received orders to cancel work on two TBI workshops, one of which analyzed the risks of repeated head impacts on children. Both workshops had already been held. One of the workshop organizers, Dr. Fred Rivara, a pediatrics professor at the University of Washington, told ESPN that the cancellation affected funding for publishing the information, and he called the potential cuts “tragic.”
“That’s a perfect example of how this change in, or devastation of, funding at the CDC is impacting people,” Rivara said. “They want to know, for sports: What about these repetitive impacts? Are they bad for kids? It’s a perfect example of the impact of this.”
Traumatic brain injuries have lifelong repercussions on a person’s physical, cognitive, emotional and behavioral health, Perlman said.
Even though some states fund TBI-treatment programs independently of the federal government, concerns are growing about a domino effect if Congress fails to renew funding.
“For many people with concussions or certainly moderate or severe brain injuries, there’s no endpoint,” Perlman said. “It’s a lifetime problem, and there needs to be lifetime funding for it.”
The first round of the 2025 Stanley Cup playoffs is complete. Eight of the teams that made the postseason bracket have moved on, and eight others have been eliminated.
Before the second-round series begin, ESPN’s experts have identified their picks for each matchup. Which four teams will move on to the conference finals?
More: Full schedule
Betting intel
Atlantic Division
John Buccigross: Panthers in seven
Ryan Callahan: Panthers in six
Cassie Campbell-Pascall: Panthers in six
Sachin Chandan: Panthers in six
Meghan Chayka: Panthers in six
Ryan S. Clark: Panthers in seven
Linda Cohn: Panthers in six
Rachel Doerrie: Panthers in six
Ray Ferraro: Panthers in six
Emily Kaplan: Panthers in seven
Tim Kavanagh: Maple Leafs in six
Peter Lawrence-Riddell: Panthers in six
Steve Levy: Panthers in six
Vince Masi: Panthers in six
Victoria Matiash: Panthers in six
Sean McDonough: Panthers in six
Mark Messier: Panthers in six
AJ Mleczko: Panthers in six
Arda Öcal: Maple Leafs in six
Kristen Shilton: Maple Leafs in seven
John Thoering: Panthers in six
Bob Wischusen: Panthers in six
Greg Wyshynski: Panthers in six
Consensus prediction: Panthers (20 of 23 picks)
Metropolitan Division
John Buccigross: Capitals in seven
Ryan Callahan: Capitals in seven
Cassie Campbell-Pascall: Capitals in six
Sachin Chandan: Capitals in six
Meghan Chayka: Hurricanes in six
Ryan S. Clark: Capitals in seven
Linda Cohn: Capitals in six
Rachel Doerrie: Capitals in six
Ray Ferraro: Capitals in seven
Emily Kaplan: Capitals in seven
Tim Kavanagh: Capitals in six
Peter Lawrence-Riddell: Hurricanes in seven
Steve Levy: Capitals in five
Vince Masi: Hurricanes in six
Victoria Matiash: Hurricanes in six
Sean McDonough: Capitals in seven
Mark Messier: Hurricanes in six
AJ Mleczko: Hurricanes in five
Mike Monaco: Hurricanes in six
Arda Öcal: Capitals in six
Kristen Shilton: Hurricanes in six
John Thoering: Capitals in seven
Bob Wischusen: Capitals in seven
Greg Wyshynski: Capitals in seven
Consensus prediction: Capitals (16 of 24 picks)
Central Division
John Buccigross: Stars in seven
Ryan Callahan: Stars in five
Sachin Chandan: Stars in six
Ryan S. Clark: Stars in seven
Linda Cohn: Jets in seven
Rachel Doerrie: Stars in six
Ray Ferraro: Stars in six
Emily Kaplan: Stars in six
Tim Kavanagh: Stars in seven
Peter Lawrence-Riddell: Stars in six
Steve Levy: Stars in seven
Vince Masi: Jets in seven
Victoria Matiash: Jets in seven
Sean McDonough: Stars in six
Mark Messier: Stars in six
Mike Monaco: Stars in six
Arda Öcal: Stars in six
Kristen Shilton: Stars in six
John Thoering: Stars in seven
Bob Wischusen: Jets in seven
Greg Wyshynski: Stars in six
Consensus prediction: Stars (17 of 21 picks)
Pacific Division
John Buccigross: Oilers in seven
Ryan Callahan: Golden Knights in six
Cassie Campbell-Pascall: Oilers in seven
Sachin Chandan: Oilers in seven
Meghan Chayka: Golden Knights in seven
Ryan S. Clark: Golden Knights in seven
Linda Cohn: Oilers in seven
Rachel Doerrie: Golden Knights in seven
Ray Ferraro: Golden Knights in seven
Emily Kaplan: Golden Knights in seven
Tim Kavanagh: Golden Knights in six
Peter Lawrence-Riddell: Golden Knights in six
Steve Levy: Golden Knights in seven
Vince Masi: Oilers in six
Victoria Matiash: Golden Knights in six
Sean McDonough: Golden Knights in seven
Mark Messier: Oilers in seven
AJ Mleczko: Golden Knights in six
Mike Monaco: Oilers in six
Arda Öcal: Oilers in six
Kristen Shilton: Oilers in seven
John Thoering: Golden Knights in seven
Bob Wischusen: Golden Knights in seven
Greg Wyshynski: Oilers in seven
Consensus prediction: Golden Knights (14 of 24 picks)
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Greg Wyshynski
The Los Angeles Kings will not bring back Rob Blake, the team’s general manager and vice president of hockey operations, after a fourth straight first-round playoff exit.
Blake didn’t have a contract beyond the 2024-25 season. The status of coach Jim Hiller, who has two years left on his contract after Blake elevated him to head coach this season, will be in the hands of the next general manager.
Blake, 55, was elevated to the job in April 2017 after serving as assistant general manager under Dean Lombardi beginning in 2013-14, the last time the Kings won the Stanley Cup.
In eight seasons as GM, Blake’s teams made the Stanley Cup playoffs five times. However, Los Angeles failed to advance past the first round each time, getting swept by the Vegas Golden Knights in 2018 and then being eliminated by the Edmonton Oilers for four straight postseasons, including the Kings’ Game 6 elimination last week.
The Kings had a .557 points percentage in the standings during his eight seasons as general manager, as Blake attempted to bridge the team’s two Stanley Cup championships in 2012 and 2014 to the next wave of stars like 22-year-old forward Quinton Byfield.
“On behalf of the entire organization, I would like to thank Rob for his dedication to the LA Kings and the passion he brought to his role,” Kings team president Luc Robitaille said in a statement. “Reaching this understanding wasn’t easy and I appreciate Rob’s partnership in always working toward what is best for the Kings. Rob deserves a great deal of credit and respect for elevating us to where we are today. He has been an important part of the Kings and will always be appreciated for what he has meant to this franchise.”
Blake’s tenure with the Kings saw them take big swings in acquiring key players, sometimes at a significant cost. In 2022, he shipped defenseman Brock Faber, a runner-up for rookie of the year last season, to the Minnesota Wild for winger Kevin Fiala, who tied with Adrian Kempe for the lead in goals this season for Los Angeles. He signed veteran forwards such as Phillip Danault and Warren Foegele as free agents and swung trades for players such as winger Viktor Arvidsson and defenseman Vladislav Gavrikov.
His most notorious trade was the one that sent three roster players to Winnipeg for center Pierre-Luc Dubois in 2023 and getting him on an 8-year, $68 million contract as the potential successor to franchise center Anze Kopitar. But Dubois was a one-and-done bust in Los Angeles and was flipped to the Washington Capitals for goalie Darcy Kuemper last offseason. Blake saved face on that one: Kuemper is a finalist for the Vezina Trophy as the NHL’s top regular-season goaltender. Blake also traded away franchise goalie Jonathan Quick and young defenseman Sean Durzi, now a steady hand for the Utah Hockey Club. Blake also traded draft assets to dump the contract of goalie Cal Petersen, whom the GM signed to a regrettable 3-year, $15 million deal.
In moving on from Blake, the Kings are also parting ways with a franchise icon. He spent 14 seasons of his Hall of Fame career with Los Angeles, and his No. 4 is retired with the team.
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