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The Official Home of Mequon-Thiensville Little League

The Official Home of Mequon-Thiensville Little League

MTLL has a long tradition of having middle and high schoolers umpire its softball and baseball games.  Umpiring is a great way to stay involved in the game and also make extra income.

If interested in becoming a MTLL umpire:

  • MTLL umpires must be in 6th Grade or older and have played 2 years of softball or baseball.  Adult umpires are also welcome.
  • You need to register here  to become an umpire and receive emails about training and games.

Additional information

  • Umpires must attend 1 of 2 training seminars.
  • Following the training seminars, umpires must pass an online rules quiz.  Quiz is open book and my be taken multiple times until passed.
  • Umpires must submit an availability form.
  • Contact Umpire Director Jack Blume with any questions.

Other Links

  • Training Manual
    • The Manual is but one of several references you should refer to when preparing for your umpire test or for improving your baseball rules knowledge. Other sources include:
  • MTLL Rules
    • Each MTLL league uses their own rules; they can be downloaded under that particular league in the MTLL Leagues pulldown menu.
  • Little League Rules
    • Little League offers an app ($1.99 download charge) which gives access to official Little League rules in all divisions.  Little League rules may apply when MTLL teams play teams from other organizations.


  • Monday, April 17 - Registration  Deadline
  • Umpire Clinics (new umpires must attend one)
    • Tuesday, April 18  5-7:30 @ Range Line Community Center, Conference Room 
    • Sunday, April 23  5-7:30 @ Range Line Community Center, Conference Room
  • April 24 - Availability Forms Due (form link to be emailed to those registered) and quiz window open
  • April 23 and April 30 - Possible Scrimmage Dates (emails will be sent 2-3 days prior)
  • May 2 through July 7 - MTLL Game Schedule
  • July 11 through 14 - MTLL Playoffs


The following may be found in the Umpires Manual:

Report time – Umpires are required to be at the field and in uniform by 20 minutes prior to the scheduled start of the game. Unless there is a dangerous situation such as a thunderstorm, you are required to report to the field despite the weather. If the game is to be cancelled, the cancellation will be listed on If you do not receive notice of cancellation, and you report to the field, you will be paid. If you are emailed by 60 minutes prior to game time, or the cancellation is posted on the website by 75 minutes prior to game time, you will not be paid. 

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