Veteran Coach with experience in MLB, Korea, Mexico, Latin America *Speaks Spanish* | Baseball Jobs Overseas

Veteran Coach with experience in MLB, Korea, Mexico, Latin America *Speaks Spanish*

Name: Mark Weidemaier

Height: cm

Weight: kg

DOB: January 17, 1955

Date Available: May 1st, 2019

Major League experience



Positions: Coach

Positions (alt):

College: Ohio State University

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Mark Weidemaier (baseball ref.) served as an assistant coach for the Ohio State Buckeyes baseball team while he attended Ohio State University where he received his masters degree in Sports Administration and Management. Post graduation Mark spent two years in a variety of coaching and administrative roles at the college baseball level before signing on with the Kansas City Royals as a minor league coach. This was the beginning of a series of coaching, scouting and administrative roles within professional baseball that has spanned more than three decades, including roles the Los Angeles Angels, New York Yankees, Cleveland Indians, Chicago White Sox, Los Angeles Dodgers, Arizona Diamondbacks, Washington Nationals and most recently, the Cincinnati Reds

Mark’s biggest achievement to-date was suiting up in an MLB uniform for the Washington Nationals from 2013-2015 as the Defensive Coordinator/Advance Coach for the Nationals manager Matt Williams. Matt had much praise for Mark in this article, outlining his reasoning from bringing him on board with the Nationals:

“I like his knowledge. For the last 18 years, certainly, he’s got experience on the field, but for the last 18, he’s looked at the game from a different view than we’ve looked at it. So he’s gotten a chance to sit up there and look and really take a hard look at what makes teams successful and what doesn’t. And the reason I asked him to come (to the Nationals) was I think his knowledge of scouting and his knowledge of the intricacies of the game is great. Certainly the defensive part of it, I’ve worked with him over the last three years in Arizona on the defensive part of it, especially the infield play. He has a fantastic advance scouting pedigree that comes along with him.” – Matt Williams

Mark is also no stranger to coaching overseas and spent past years as the Scouting Coordinator and Coach for the Samsung Lions of the Korean Baseball Organization (KBO). He also has experience coaching in winter leagues in Mexico, Dominican Republic, and Venezuela, making full use of his fluency in Spanish. Mark is now looking to continue with his career overseas and is open to coaching opportunities in any professional league, possibly a top team in Germany or the Czech Republic. He is also available to run coaches clinics or any other instructional opportunity that presents itself.

For the 2019 summer, Mark was the Manager for the Woolly Mammoths of the United Shore Professional Baseball League (article). He Mostly recently signed with the Kia Tigers of the Korean Baseball Organization. Here is a recent interview with Mark on his new role:

Coaching Experience

11/1998-10/2010 Special Asst to GM/Advance Scout Los Angeles Dodgers MLB Served as working coach and Spring Training coordinator. Providing detailed advance scouting reports to the Major League manager and staff. Scouting and coaching Winter Ball in the Dominican Republic and Venezuela. Scouted Japan and the Pacific Rim. Coordinator of instruction, coach, and instructor, LA Dodgers Dominican Academy.
11/2010-10/2013 Special Assistant to the GM and Advance Scout Arizona Diamondbacks MLB Providing detailed advance scouting reports to the Major League manager and staff. Coordinating Major League Spring Training as a working coach. Reporting directly to the general manager regarding player trades and acquisitions. Coaching and scouting the Winter League in the Dominican Republic and Mexico. Coaching in the Fall League.
11/2013-10/2015 Defensive Coordinator/Advance Coach Washington Nationals MLB Defensive positioning of players during games and coordinating advance scouting. Instructing infield and outfield play. Serving as acting bench coach. Developing and implementing advance scouting plan for 2014 playoff season. Developing, coordinating, implementing all field activity during Spring Training
11/2015-04/2016 Field Manager Veracruz Red Eagles Baseball Club Mexican League (AAA) Managing games and field coaching. Recruiting and signing players. Running youth baseball clinics. Speaking to local charitable organizations.
05/2016 Coach MLB Coach Development Program Santo Domingo, Dominican Republic & Bahamas Instructing coaches and players in all areas of baseball. Teaching baseball clinics for youths 14-18. Providing classroom instruction and powerpoint presentation on “Infield Play”
06/2016 Coach Team USA Baseball 18U Instructing players in all areas of baseball. Evaluating players for selection to the USA Team. Coaching players during practice and games
7/2016-4/2018 Scouting Coordinator/Coach Samsung Lions Baseball Club Korean Baseball Organization Scouting and signing players Internationally for the Samsung Team. Working as a coach for the Samsung team instructing players in all areas of baseball. Assisting the Field Manager and General Manager in all aspects of baseball operations.
4/2018-11/2018 Advance Scout Cincinnati Reds MLB Providing detailed advance scouting reports to the Major League manager and staff.
2019 Manager Woolly Mammoths United Shore Professional Baseball League
2020, 2021 Bench Coach Kia Tigers Korean Baseball Organization Bench coach for long time coaching partner and newly acquired, Matt Williams
2022 Manager Tecolotes de los Dos Laredos Mexican League

Additional Info

Additional Baseball Work-Related Experience

Winter 2015-16:

Bench Coach, Mazatlan Venados, Mazatlan, Mexico ( Mexican Pacific Winter League )


Major League Advance Scout, Chicago White Sox, Chicago, IL


Roving Infield Instructor and Scouting Supervisor, Eastern United States and Latin America. Including scouting the Winter Leagues in Mexico, Dominican Republic, and Venezuela, Cleveland Indians, Cleveland, OH


Director Player Development and Field Coordinator, Mexican League Academy ( Pasteje ),  Atlacolmulco-Toluca, Mexico


Defensive Coordinator, Roving Instructor, Minor League Manager (Prince William-Carolina League), and Director of Dominican Operations, New York Yankees


Field Manager, Union Laguna Baseball Club, Torreon, Mexico ( Triple A Mexican League )


Scouting Supervisor, Roving Infield Instructor, Interim Manager ( Midland, Texas League ), and Director of Player Development-Dominican Republic Academy, California Angels


Extended Spring Manager, Minor League Coach, Kansas City Royals


Assistant to the Director of Athletics for Promotion and Development, UNC-Asheville, Asheville, North Carolina ( Fund raising for total Athletic Dept., Head of Bulldog Athletic Club-Director of Special Promotions )


Head Baseball Coach, Montreat-Anderson College, Montreat, NC


Field Manager, Waynesboro Generals, Shenandoah Valley Summer College League, Waynesboro, VA ( Won 1982 Valley Baseball League Pennant )


Graduate Assistant Baseball Coach, The Ohio State University, Columbus, OH


Professional Activities


  • Member, Major League Baseball Players Alumni
  • Member, Professional Baseball Scouts Foundation
  • Member, Association of Professional Ball Players of America
  • Member, American Baseball Coaches Association
  • Member Alpha Tau Omega Fraternity
  • Featured clinician, “Be The Best You Can Be” Coaches Clinic, Cherry Hill, NJ
  • Featured clinician, Philadelphia Senators Baseball Clinics, Philadelphia, PA
  • Have signed a number of Major League Players including Paul Sorrento, Herbert Perry, and Jonathan Nunnally
  • Have amateur scouting reports on file in the Baseball Hall of Fame-Professional Baseball Scouts Collection, Cooperstown, NY




  • The Ohio State University – Columbus, OH

Master’s in Physical Education with an Emphasis in Sports Administration and Management, 1980

  • Union University – Jackson, TN

Bachelor of Arts, Double Major in Journalism-English, 1978

  • Upper Arlington High School, Columbus, OH

Graduated, 1973


Mark Weidemaier, new Nationals coach, is awake to all of baseball’s possibilities – The Washington Post

BIO – Mark Weidemaier Special Assistant to the GM & Major League Advance Scout – Arizona Diamondbacks

Washington Nationals coach Mark Weidemaier talks his beginnings with Waynesboro Generals (Link)

Mark Weidemaier talks early string of errors, defensive philosophy – The Washington Times