skip navigation
Banner idea 2017 splash


click the baseball to sign up on the wait list.

Registration for the 2018 Season is over.  If you still wish to register your child for baseball this season, you may signup on the waitlist.  If space becomes available, waitlist members will be contacted to register.  Wiffle Ball has some slots available, if you're looking to do wiffle ball please go to the waitlist.


Volunteer Registration is Open!

2018 SMLLA Coaches Clinic



San Mateo LL American members:

You may have received this reminder even if you haven't already expressed interest in helping your team manager by becoming an assistant coach. It's not too late to get involved!

There are a number of things happening at Trinta at the end of January, weather permitting we get them all done. First Aid and Coaches Clinic will also be offered, January 27th (Saturday) & 28th (Sunday).

If you are planning to manage or be an assistant coach / field prep crew or Board member, you MUST fulfill the requirements for new or returning volunteers. See below for links to online forms and the volunteer registration--required for all new and returning volunteers each year.

In order to be cleared to coach practices and games, every coach and manager must fulfill the safety requirements for an ID badge every year.

  • New volunteers must be fingerprinted ("LiveScan") in addition to attending one coaches clinic and the First Aid Clinic to be run at 10:00 am on the days of the Coaches Clinics. It is highly recommended you come this Saturday to the LiveScan if you have not been fingerprinted for SMLLA yet. We may not have another session at the park, but you can fulfill this requirement at other LiveScan locations.
  • Returning volunteers are required to refresh their First Aid training every 3 years.


***Volunteers are required to attend one of the two days of training***

Saturday, 1/27 (at Trinta Park):

9:00 - 10:00 AM LiveScan (Fingerprint) Service REQUIRED FOR ALL first-time coaches/managers/board members -- bring Driver's License and completed SMLLA LiveScan form (Inside in the Board Room, first come first serve)

10:00 - 11:00 AM First Aid Clinic - Inside in the Board Room if raining

11:00 - 1:00 PM Coaches Clinic with Don Hahn -- Weather permitting. We will send another email if this gets canceled.

Sunday, 1/28 (at Trinta Park):

9:00 - 11:00 AM LiveScan (Fingerprint) Service available (for ALL first-time coaches/managers/board members)

10:00 - 11:00 AM First Aid Clinic

11:00 - 1:00 PM Coaches Clinic with Don Hahn

Who should attend: Open to all volunteers, mandatory for new coaches and managers (T-ball through Majors). First Aid also required for Board Members.

Lunch will be provided immediately after the coaches clinics.

Field badges required for T-ball thru Majors (not Wiffle Ball). Requirements for a field badge include: 1) completing the volunteer registration
(Click to begin Adult Registration here); 2) a one-time fingerprinted background check for SMLLA (“LiveScan”) (click here for LiveScan form) ; 3) Child sexual abuse prevention training every two years (Click on Stewards of Children tab from here); 4) Completion of First Aid/Safety training every three years. If you have questions regarding these requirements or your eligibility for a field badge in 2017, please email

Click Image to Register

click the picture below to go to our bat info page

Welcome to San Mateo Little League American

Welcome to San Mateo Little League American! For over 55 years we have brought the great game of baseball to the youth of the San Mateo and Burlingame. Every year we have approximately 600 players swinging bats, throwing & catching balls, making new friends, seeing old friends and keeping Trinta Park filled with the neighbors in our communities - enjoying one of our nation's favorite pastimes. We are proud of the tradition SMLLA continues each Spring and will work hard to make sure it endures well into the future for our neighborhoods. SMLLA is chartered under the Little League Inc. of Williamsport, P.A. and is subject to all rules and regulations contained in their Official Rule Book. 

Text Alerts - Be the first to know

Games are played in the rain unless field conditions are a safety issue. CLICK  HERE to sign up for TEXT ALERTS from SMLLA.

Always assume games are ON unless you see a text alert, see an update on the web or hear from your manager.



SMLLA Mobile App

San Mateo Park & Rec Field Updates

Click Here: San Mateo Park & Rec Field Updates 


Note: The City of San Mateo does post when they close all fields. We have the permits for Trinta Park and the City knows how much time and effort that we put into the fields. They have graciously let SMLLA determine if a game should or should not be played based on field conditions. They are keenly aware that SMLLA would not do anything to compromise the integrity of our beloved fields.


You could win $5000! Plus, help us win a VIP Theater Takeover for our members. ENTER NOW