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Nickname:   N/A Position:   Pitching Coach
Home: N/A Team:   Retired
Height: 6' 2" Bats:   R
Weight: 220 Throws:   R
DOB: 4/3/1963 Agent: Dennis Gilbert
Uniform #: N/A  
Birth City: Carmichael, CA
Draft: Brewers #2 (sec.)-Jan.1982-Out of Sacramento C.C. (CA)
1986 PCL VANCOUVER   44 67 47 59 13 0 0 0 16 7 3   2.28
1986 AL BREWERS $60.00 10 34.2 41 29 13 4 0 0 0 0 4 0.293 7.01
1987 AL BREWERS $67.00 46 170 187 150 50 19 2 1 2 11 8 0.276 5.24
1988 AA DENVER   2 14 13 12 4 2 1   0 1 0   3.86
1988 AL BREWERS $107.00 38 182 190 84 38 22 9 1 6 7 15 0.268 3.36
1989 AL BREWERS $200.00 33 234.2 225 173 48 33 8 2 0 15 10 0.249 2.95
1990 AL BREWERS $710.00 20 132.2 131 76 38 20 4 1 0 4 9 0.258 4.00
1991 AL BREWERS $875.00 32 204.2 187 117 58 32 5 1 0 14 10 0.244 3.25
1992 AL BREWERS $2,287.00 33 231.1 223 120 44 33 4 2 0 16 6 0.254 3.62
1993 AL MARINERS $2,750.00 29 164.1 138 119 59 24 3 1 1 9 9 0.229 3.45
1994 AL MARINERS $4,000.00 19 125 137 67 40 19 4 0 0 4 10 0.277 4.32
1995 AL MARINERS $4,250.00 31 170 211 85 69 31 0 0 0 10 8 0.313 4.92
1996 AL MARINERS $4,250.00 18 60.2 72 39 24 9 0 0 0 4 4 0.299 5.93
1997 IL PAWTUCKET                            
  • In 1987, Bosio was named in a municipal citation with assault and battery for a scuffle with a parking lot attendant after refusing to pay a $4 parking fee. Chris was fined $500.
  • In 1989, Chris quit drinking alcoholic beverages.

  • He is very emotional. He is not a calm person. He's excited when he wins and gets upset when he loses. When he was named pitching coach for the Devil Rays in November 2002, Chris said, "I'm very competitive, intense and passionate. When I was pitching, I didn't like guys taking big swings against me and I didn't back down. I like having fun, but I'm there for a reason. I don't think there's any other way to go about it."
  • Chris got married over the winter before the 1992 season.
  • The Mariners signed Chris to a four-year, $15.25 million contract, Dec. 3, 1992.
  • During 1993 spring training, Chris's grandfather, Virgil Scatera, died. They were very close, so he was very hurt by the loss.
  • Chris pitched a no-hitter for the Mariners April 22, 1993, beating the Boston Red Sox on just three days of rest instead of his usual four days off. 


  • In his very next start, April 27, he broke his collarbone in three places when he and Jeff Treadway of the Indians collided on a close play at first base. However, on May 28, Chris joined the list of medical marvels when he came back in an amazing 31 days. Doctors had projected Bosio would miss two months or more. But Chris spent over 5 hours daily in the pool, struggling to regain his range of motion. He also worked out on the stationary bike and the stair climber as part of his herculean rehab effort.

  • With a broken collarbone, sleep is near-impossible. He attempted to get a few hours' rest in a chair, but says, "I finally had to have my wife arap me up like a mummy with an Ace bandage. That held my arm against my body so I could get a little sleep."

    After reinjuring the collarbone in an on-field brawl, Bosio was again reactivated June 25 by Seattle Mgr. Lou Piniella, who attempted to pull a fast one on AL Pres. Bobby Brown. Bosio was to begin serving a 5-game suspension for his participation in the brawl after his first appearance upon being activated from the D.L. So Piniella put Chris in as a pinch-runner. But Bobby Brown ruled, "Bosio has to pitch." So, Piniella had Bosio start the game on June 26, then pulled him after he retired the first batter on one pitch and replaced him with Erik Hanson. Then, the suspension started.

  • Earlier in the 1993 season, someone robbed Bosio's home in northern California; his grandmother died; his friend, Cleveland P Tim Crews was killed in a boating accident; and a woman living below his apartment in Phoenix shot her daughter and killed herself.
  • Bosio had his 7th knee operation Nov. 29, 1995. This one was arthroscopic surgery to remove bone spurs and clean up the area. So Chris had to start the 1996 season on the D.L
  • There is continual concern about Chris's weight
  • He went back on the D.L. May 25, 1996 with arthritic right knees. He returned to action July 27.
  • The Mariners didn't exercise their option on Chris for 1997, so Bosio became a free agent Oct. 18, 1996.
  • He signed with the Red Sox organization Aug. 12, 1997. But a strained muscle ended that comeback attempt and he retired March 3, 1998.
  • In October, 2002, Bosio sold the baseball academy he owned. And in a few days, he and his family were planning to move from their Shingle Springs, California home to Wisconsin in order to be closer to wife Suzanne's family. 

    That plan was thrown a huge curveball in November, 2002 when Devil Rays manager Lou Piniella called to ask Bosio if he would be interested in becoming the club's pitching coach. Chris likes working with Lou. "I played for him for four years,'' said Bosio, who capped his 11-year playing career with four seasons in Seattle from 1993-96. ``He is a great person and a Hall of Fame manager. It was a wonderful experience in Seattle, to see what that organization accomplished.''

  • In 1997, Bosio opened a baseball academy in California. He works there with kids in the off-season.
  • Chris and Cubs manager Dale Sveum were both drafted by the Brewers.

    "But I was a mid-winter draft and he was a June draft," Bosio said. "When he came to camp, I was the first guy waiting for him off the bus."

    Thus began an enduring friendship. They were Brewers teammates from 1986-1991.

  • Chris fired a wide selection of hard breaking stuff: He had a 91 mph FASTBALL, hard SLIDER, SINKER and CHANGE-UP. In 1989, he added a SPLIT-FINGER FASTBALL.

    His main pitch was the fastball. If he got it down, he usually got a strikeout or ground out. He didn't come at batters hard, hard, hard. He mixed up his fine pitches. He had a good delivery, gave you a lot of deception by changing speeds. He knew how to pitch.

  • In 1986, Bosio jumped from the low minors to George Bamberger's staff with Milwaukee.
  • Chris could start or relieve but was much better suited to the rotation. "He's big, he's strong, he's got four pitches," said Brewer manager Tom Trebelhorn when he moved him back into the starting rotation in 1987. "When you've got the breaking ball he has and have as good a fastball as he has, you're going to get batters out."

  • Bosio recalls the best game he ever pitched, and a unique conversation he had with his pitching coach near the start of it: "It was my third start of the 1993 season, and I walked the first two Boston batters. I never did that. So, (Seattle pitching coach) Sammy Ellis comes out to the mound and says, 'What the hell is going on?' I said I didn't know, but I felt terrible before the game. So he said, 'Well, get a ground ball, get out of the inning, throw a no-hitter and let's get out of here.' I got a ground-ball double play, then got Andre Dawson out to end the inning. The rest is history (Bosio threw a no-hitter). To this day, Sammy still says that's the only time I ever listened to him."


  • Bosio has a real love for the game. One time, when he was sent to the Mariners' Class-A San Bernardino team on an injury rehab, manager Dave Brundage recalled, "I look up and he's talking to the other team's pitchers," Brundage said, laughing. "He's got a love of the game and wants to share it with others."
  • Chris is very energetic and has lots of ideas. "The main thing you learn is not to try to teach them to pitch like you. Let them be themselves. A big part of it is gaining their trust and giving them a solid plan to follow," Bosio said.
  • Asked how he gets young pitchers to throw strikes, Chris said, "They've just got to believe in the defense behind them. Contact is a good thing. They've got to use the seven guys behind them but also work a lot with the one guy in front of them, the catcher. After that, a lot of it is mechanics. I am a big believer in mechanics. All pitchers in the Majors, every one of them, have something to work on. There are no exceptions."
  • Former Cubs manager Dale Sveum said of Bosio: "He brings a sternness. He isn't afraid to talk to big league pitchers on their level. Believe it or not, that's a hard quality to find. There aren't a lot of guys who'll be stern with Major League pitchers and superstars."
  • Chris is an old-school guy with new-school sensibilities. He employs statistical data, which makes the new Cubs brain trust happy, but likes to keep things simple, which appeals to Sveum.

    "We're going to give these guys as much information as we can about how to put hitters away," Bosio said. "The ideal sequence is three-pitch outs."

    Bosio's bottom line: "I want my guys to be mentally tough, unafraid of any situation, unafraid of throwing any pitch at any time."

    Chris believes in throwing to both sides of the plate and, above all, making hitters uncomfortable—even if that means delivering a little chin music.



  • 2001: He was the Pitching Coach for Tacoma (PCL-Mariners).

  • 2002: Bosio was a roving Pitching Instructor for the Mariners.
  • 2003: Chris went to the Tampa Bay Devil Rays as Pitching Coach for Lou Piniella. But a family health situation caused Bosio to quit after one year.

    November 5, 2003: Bosio resigned as Rays' Pitching Coach. Bosio did not want to comment on the specific reason for his resignation, but he did release a statement through the Rays:

    "Right now my family needs me more than baseball does so I have decided to step down," Bosio said. "I would like to thank the organization for the opportunity, thank the players for their hard work and wish them all good luck next season."

    A few years later, Chris said, "There was just a lot of stuff going on with our family. It was a very easy decision for me to put things on the back burner."

    Chris continued to coach pitchers at the amateur level, mostly with the University of Wisconsin-Oshkosh.

  • 2007: He was pitching coach for Lawrence University in Appleton, Wisconsin.

  • 2008: Bosio joined the Reds' organization as Pitching Coach for the Chattanooga Lookouts (SL).

  • 2009: Chris returned to the Brewers organization as Pitching Coach for the Nashville Sounds (PCL).
  • August 12, 2009: Bosio replaced Bill Castro as Pitching Coach of the Brewers.

  • 2010: Chris was an Advance Scout for the Brewers.
  • 2012: Bosio joined the Cubs as Pitching Coach under new manager Dale Sveum.

    Chis and Sveum go way back, starting over 30 years ago across the line of scrimmage on a high school football field in Northern California. Sveum was an All-American quarterback at Pinole Valley High School, and Bosio played defense at rival Cordova High.

    "Dale's team was ranked 20th in the country," Bosio recalled. "Our team was ranked second, behind Moeller High in Cincinnati. Dale was a quarterback who had a chance to go to Arizona State."

  • October 2017: The Cubs parted ways with Bosio.

  • Feb 2, 2018: The call to Matthew Boyd came while he was doing his workouts. It came from Chris Bosio, the new Tigers pitching coach, and he was introducing himself. Considering the video work Bosio had put in on Boyd, he already knew a lot about the lefty.

    "He already had drills that I could work on that I implemented into my throwing program that really helped me out," Boyd recalled. "He really knew me in and out as a pitcher. He was paying really close attention to the things that I did throughout the 2017 season and the adjustments I made late in the year. He could just pick them up on the video. It was really impressive."

    The call to Jordan Zimmermann came around the same time. Bosio knows Zimmermann from college, when Zimmermann was pitching at Wisconsin-Stevens Point and Bosio was coaching at a rival school in the state. Bosio also saw Zimmermann when he was an up-and-coming starter with the Nationals. "He watched video on me and told me he noticed I was much, much slower last year 2017 going to the plate compared to what I was in D.C.," Zimmermann said. "I said that's a product of me running a thousand things through my head."

    Michael Fulmer got a phone call as well as he was strengthening his arm in Lakeland, Fla., following ulnar transposition surgery. "The thing that impressed me about him," Fulmer said, "is he already watched video of all our pitchers and he was already trying to help me on my slider."

    The Tigers have had a relatively quiet offseason for player moves. Their biggest acquisition on the pitching side arguably was Bosio, whose departure from the Cubs caught many by surprise at the end of October, 2017. General manager Al Avila moved quickly to get him onto new manager Ron Gardenhire's staff, seeing the potential in Bosio to mold a young staff the way Jeff Jones worked with Justin Verlander, Max Scherzer and Rick Porcello in the early part of this decade.

    The work Bosio has already put in has backed that up. And as the Tigers try to build their next contending team around pitching -- some of it already in the Majors, some on the way -- there's already reason to believe they have the right man in charge of it. "I think he's going to be really big for us, especially me, Michael and Matt," Norris said. "We're the young guys, and we obviously still have a lot to work on, and I think he's a very good teacher to have that's going to help us with what we need to work on. For me, personally, I've been very excited to work with him. I'm going to be a sponge. I'm going to soak up everything I can. I think that there's a lot inside of me that he can help unlock, and that'll help me reach my potential."

    Bosio's video work began even before he was introduced. He knew some about the Tigers' young pitching, and he learned more by asking around and talking with people inside and outside the organization. But he wanted to see for himself what he had to work with. The talent, he said, is here. It's about putting them in the best position to match talent with performance and taking advantage of the opportunity.

    Bosio does not have a cookie-cutter approach to pitching. Everybody is different, he said, and has to be coached differently. He does have philosophies and goals that apply to everyone, but those are more strategic. "I want these guys to be able to go out there and throw any pitch at any time," Bosio said. "I'm a big believer on pitching inside. I'm a big believer in soft contact. And I'm a big believer in taking advantage of your defense, trying to be pitch-efficient. If you can do those things, you're going to be successful as a pitcher, not just as a Major League starter."

    The other thing he believes in is speed, not in velocity so much as pace. If Major League Baseball ends up with a pitch clock in place for this season, Bosio does not believe his team will need it. He wants his pitcher waiting for the hitter to get into the box. "That's the one thing that I'm going to try to stress with our pitching staff is dictating the tempo," he said. "We're going to play an up-tempo game. We're going to try to control the tempo of the game and then try to get three quick outs and turn it over to the offense and let those guys go to work." It's more of a mental approach than physical, which reflects a lot of what Bosio teaches. He knows mechanics, but he wants to make sure there's a good frame of mind behind the pitch.

    "Physically, they're talented. They're here. A lot of them, they just have to relax and be themselves, and I want them to do what's comfortable," Bosio said. "That's the reason why we drafted them or traded for them. The mental side is huge, I think more important than the physical. We've had a lot of success at the organizations I've been with really just allowing these guys to be themselves. There are some mechanical tweaks, but more mental than physical." (J Beck - - Feb 2, 2018)

  • June 27, 2018:  The Tigers terminated the Chris's contract as pitching coach for insensitive comments made toward a team employee in violation of company policy.
Career Injury Report
  • August 1990: He underwent surgery on his left knee and missed the rest of the season.

  • October 1990: Surgery was required on his right knee. It included the removal of a cyst.