Thunder Umpires

Umpire Training

Thunder Umpires are trained and certified by Baseball Ontario.

For more information on EOBA / OBA Umpires:

Go to...The Baseball Ontario Umpires Page

Umpire Game Assignments

For more info please contact:

Umpire Scheduling: Marilyn Eimers

Umpire-In-Chief: Bob Moses

Umpire - Rules

View - > Official Rules of Baseball

View - > OBA Umpire Rules Page

Umpire - Ejection Report

Ejection Reports:

Umpires please email all ejections to both: Marilyn Eimers & Bob Moses

Please include: Date, Division, Teams, Your Partners Name, Name & # of ejected player/coach and description of incident

Umpire Scheduling: Marilyn Eimers

Umpire-In-Chief: Bob Moses

Umpire Links:

EOBA Umpires Page

Baseball Ontario Umpire Page

MLB Official Umpire Site

Baseball Canada Umpires

The Harry Wendelstedt School for Umpires

Jim Evans Academy of Professional Umpiring