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Thunder Goal:

Our goal in Thunder Baseball League (TBL) is to prepare our players for High School Baseball and beyond. Through hard work, persistence, and dedication to teach, coach, and play sound fundamental and aggressive baseball we will reach our goals. It is a collective effort on the part of the players, coaches, parents and the Rocky Mountain Junior Baseball League (RMJBL) (fka Jefferson County Junior Baseball League) the "League", which will bring about these obtainable results.

Please visit the Forms and Documents listing (Parents) for additional information: New to Thunder Information

Please also view the video link attached for a description of the difference between Thunder Baseball League and Thunder Academy.  Thunder Academy teams provide the highest level of competition among all Thunder Baseball League teams.


TBL Partners with Thunder Academy and Impact Sports Performance for the support and improvement of players and coaches.

Thunder Academy Indoor Facility is located at:
6900 W. 117th Ave
Broomfield, CO 80020


Our Mailing Address is:
Thunder Baseball League
PO Box 31
Broomfield, CO 80038

For more information about our partner, Thunder Academy, visit:

For more information about our partner, Impact Sports Performance, visit: