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Varsity Head Coach
Craig Parthemer

Varsity Assistant Coaches
Matthew Johnson | Brad Jesernig

JV Head Coach
Pete Wilkinson

JV Assistant Coaches
Brian Gattis | Kyle Skinner

JVC Head Coach
Harry Xue

JVC Assistant Coach
Mark Yoshinaga

Roving Assistant Coach
Mitchell Holliday

Craig Parthemer

Craig Parthemer is returning to lead the Bellevue High School Baseball program with strong local roots as a player, parent, and coach at the high school, select, and collegiate levels. Through it all, he believes firmly that together, a team can have fun, work hard, and win.

Craig was the Head Coach at Sammamish HS in 2004 and 2005.  The Totems earned KingCo playoff berths during both years.  In 2004, he coached Sammamish to an 11-7 record and third place finish in KingCo 3A after the team had won only three games the prior year.  He was selected the Seattle Post-Intelligencer (now merged with Seattle Times) Puget Sound Area Baseball Coach of the Year in 2004.  He resigned from Sammamish in 2005 to concentrate more efforts towards following the progress of his son T.J., who was entering high school ranks as a premier player in the state.

Following TJ’s local playing journey, Craig began coaching high school again in 2009 as Varsity Assistant Coach at Eastside Catholic HS through the 2010 season.  He then moved to Mount Si HS as a Varsity Assistant Coach from 2011 to 2013.  In 2011, he helped coach Mount Si to the 2011 Washington State 3A Baseball State Championship for Head Coach Elliott Cribby, now Assistant Head Coach/Pitching Coach at University of Washington. Mount Si also won three straight KingCo 3A Tournament Championships, reached the regional finals in 2012, and a fourth place finish at State in 2013. Parthemer was also a Varsity Assistant Coach at Bellevue HS in 2014. The team won the KingCo 3A regular season title. His local east-side journeys then took him to the position of Varsity Assistant Coach at Interlake HS 2015 and 2016.  The Saints qualified for KingCo 3A Tournament in 2016. Craig then took an assistant coaching position at Bellevue College from 2017-2018.

Craig is well established in the youth summer ball circuit, starting as the Head Coach of the Boys of Summer program (sponsored by Poulsbo RV) from 1999 to 2004.  Team changed sponsors to become Baden Baseball Club in 2005.  He was an assistant with Baden 2005 and 2006.  He returned again in 2010 with Boys of Summer.  He was an Assistant Coach with 18U in 2010, 2011, 2012, 2013, and 2016, and was Head Coach at 15U in 2014, and 16U in 2015. He has been an Assistant Coach for 18U since 2016.

Parthemer has helped coach five current or former Major League players, 27 MLB drafted players, and over 96 Division I players. Most notable famous players are retired Major Leaguers and World Series Winners Tim Lincecum of the San Francisco Giants and Jason Hammel of the Chicago Cubs. Parthemer’s extensive experience with high level players and longevity have made him an excellent resource for helping hundreds of players move on to college baseball.

Craig was a former All-KingCo football and baseball player at Sammamish HS.  He was Team Captain in baseball, and won the Blocker/Tackler award in football.  He was nominated for the National Football Foundation Scholar/Athlete award.  His summer ball days were spent under the legendary Coach Bob Albo (member of the state coaches’ hall of fame) with Memorex Legion.  He played baseball at the University of Washington from 1980-82.  The Huskies won Northern Division of the PAC-10 in 1981.  He played three years of Semi-Pro Baseball in Western International League 1980-82, playing for the league Champion Cheney Studs in 1982.

Parthemer has been married for 40 years to wife Joni, who runs her own small business.  His son T.J. (33) lives and works in Santa Monica, C
A, and is married.  He is a former Bellevue College player (2009-10) who transferred to Cornell University.  TJ played on the 2012 Ivy League championship baseball team at Cornell and pitched in the 2012 NCAA Tournament at the regionals in Chapel Hill, NC.  His daughter Shelby (27) is a Certified Athletic Trainer after receiving her undergrad at UW and Master’s at the University of Arkansas.

Craig has been an Insurance agent for 38 years and currently co-owns a brokerage firm.

Matthew Johnson

Matthew Johnson returns to KingCo baseball as JV Coach at Bellevue High School, bringing 5 years of coaching experience, player development, and a lifetime of play.

A 2006 graduate of Georgetown University, he was a 4 year starter where he played SS and pitched. Collegiate summer ball took him to the Alaska Baseball League and play in Arizona.

Matthew was a three-year starter for Newport High School Varsity Baseball and captained the 2001 3A State Championship team in his senior year. Among other High School highlights were his playing for the Mariners Scout Team in 1999 and Baseball Washington in 2000 and playing for Food Giant in summer ball.

Brad Jesernig

Brad is the new pitching coach for the varsity baseball team. A 2007 graduate of Capital High School in Olympia, he was a Second team all Narrows league third basemen and second team all-state pitcher.

After high school, Brad attended Pepperdine University from 2008-2011 and was a right-handed relief pitcher for the baseball team and received his degree at the end of the 2011 season.


Brad's previous coaching experience includes Inglemoor, Interlake, Capital and our own Bellevue high in 2014. He was also a starting pitcher for assistant coach Pete Wilkinson’s Academy from 2004-2007.


Brad works as a realtor for Keller Williams Eastside when not supporting the Bellevue High baseball program.

Pete Wilkinson

Is a former international Olympic program baseball and softball lead consultant, a former collegiate baseball player at the University of Southern California, a high school baseball coach in both California and Washington with teams ranked in the top echelon of statewide polls in both states, and a coach of State and Regional Champions at both the high school and select levels.

Pete has been recognized nationally and internationally for the quality of his teaching, coaching and mentoring his students. 

  • He has been awarded the American Baseball Coaches Association’s “Collegiate Baseball News Tom House Teaching Professional of the Year Award”

  • He served as Exclusive National Consultant for the development of both the baseball and softball Olympic Development Programs of the former Soviet Union

  • He is on the Canadian national youth baseball coach certification faculty for BC Minor Baseball

  • He has been a member of the National Pitching Association’s coach and player development faculty and later a Regional Director of that organization

  • He has been named Conference Coach of the Year in his stint as head coach at Bellevue High School in Washington, and he has coached high school teams who have won Conference, District, Regional and State Championships

  • He has been and continues to speak at and participate in state, regional, university, high school association, and national/international clinics and camps and to local and regional organizations

  • He has spoken at the American Baseball Coaches Association annual conference and at the National Fastpitch Softball Coaches Association annual conference

  • He served the Pac-12 Conference as an Umpire Observer in the first conference-sponsored program of umpire evaluation and development

Harry Xue

Harry was a two-year varsity starter at Interlake High School and was a captain for both of those years. He was an honorable mention all KingCo selection his junior year and a second team all KingCo outfielder his senior year. After his senior season, Harry was given the Hammer award which is awarded to the best hitter on the team and was selected to play in the KingCo All Star Game. 


Harry went on to play one year of baseball at Bellevue College and one redshirt year at Seattle University as a left-handed pitcher before graduating in 2021. 


He played his final two years of high school baseball as well as his lone year of baseball at Bellevue College in 2017 under current Bellevue High School Head Coach, Craig Parthemer.

Mitchell Holliday

Mitchell Holliday is new to coaching at Bellevue High School. Mitchell immigrated from Canada at a young age, and attended Lake Washington High, graduating in 2011. 

After Graduation, Mitchell enlisted in the United Stated Air Force, serving as aircrew on a C-17 Globemaster. After finishing his service, Mitchell came back to the Seattle area.  

Mitchell is currently employed as a Surveillance Technician for Snoqualmie Casino.

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