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Coach & Referee Courses

If you are volunteering as a Coach or Referee with MDSA, you must complete the following steps:

  • Register as a 2017 Volunteer at
  • Complete the Safe Haven and Concussion Awareness Courses at
  • Complete the necessary courses to be certified for your role



6U and 8U Coach Courses

10U  Coach Courses

MDSA 10U Courses are now complete for Fall 2017. Check for other local certification courses.


12U  Coach Courses

MDSA 12U Courses are now complete for Fall 2017. Check for other local certification courses.


Regional Referee Courses:

MDSA Regional Referee Courses are now complete for Fall 2017. Check for other local certification courses.


Sign up for the courses at > My Courses > Instructor Led Courses

Fall 2017 Registration - Late Registration by Request

Our Fall season is starting up!  If you still want to register, send an email to and include your child's date of birth so we can determine if there is space in the division.

Register now by selecting the appropriate button below.  


How to Register:  

Start the online registration process using one of the buttons above.  This will take you to our inLeague system and allow you to logon using your existing userid and password, reset your password, or register as a new user.

As part of the registration process, we ask every family to sign up for at least one volunteer role.  MDSA is run by a small core of volunteers that put in many hours each week to make sure all of the elements are in place to create a great soccer experience for you and your children.  However, we cannot do it without your help.  We are always in need of coach and referee volunteers to work with us to make this a successful program for everyone.   If you are interested in other volunteer roles, please let us know as there are many opportunities to make a difference “behind the scenes”.  Feel free to email us at

Our "guaranteed placement" registration period ends on June 18, 2017.  Make sure you register by then in order to ensure your child is placed on one of our Fall Soccer teams.  Players registered after June 18th will be placed on a waiting list and we will attempt to place the player on a team.  Teams will fill up fast so register today! 

2017 Registration Fees:

The 2017 Fall Player Registration Fee is $142.50 plus a non-refundable AYSO Annual Membership Fee of $17.50.  The Fall Player Registration Fee is used to offset the cost of uniform kits (jersey, shorts, socks and a soccer ball), field rental fees, equipment, and other incidental expenses.

  • $130 for Registrations received before 5/8 ($142.50 + $17.50 AYSO Annual Membership Fee - $30 Early Bird Discount for early registration / guaranteed placement)
  • $160 for Registrations received between 5/8 - 6/18 ($142.50 + $17.50 AYSO Annual Membership Fee for guaranteed placement)
  • $200 for Registrations received on or after 6/19 ($142.50 + $17.50 AYSO Annual Membership Fee + $40 Late Registration Fee for waitlisted registration)


NOTE: Player Fees include a non-refundable $17.50 AYSO Annual Membership Fee. If a player is withdrawn before July 15 (the team building player count lock in date) and any distributed equipment has been returned, a full refund of the Fall Player Registration Fee will be issued.  The non-refundable AYSO Annual Membership Fee of $17.50 will not be refunded.

If you have never played with MDSA previously you will need to register your family in our online system by clicking here.   If you have registered a child with MDSA previously, even if your child did not play Fall 2016 or Spring 2017, you can click here to log in using your existing family profile (you can also reset your password if you have forgotten it).


on Sat, 03/10/2012 - 11:20

Welcome to Mt. Diablo Soccer, or AYSO Region 223, serving Clayton, Concord, and the surrounding communities.  AYSO is a national organization dedicated to youth soccer.   Our Vision is to provide world-class soccer programs that enrich children’s lives.   We do so by developing and delivering quality youth soccer programs which promote a fun, family environment based upon our six philosophies:

  • Everyone Plays - Our program's goal is for kids to play soccer.  AYSO National mandates that every player on every team must play at least 50% of every game.

How to Ensure Your Child Has a Great Experience Playing Soccer with MDSA

on Wed, 07/31/2013 - 07:56

Dear MDSA Families,

As the Referee Administrator team, we want to welcome you to another fun and exciting year of soccer.  We know that no matter what skill level your child has in soccer, MDSA will work very hard to provide a fun, family friendly place for them to learn about soccer and themselves.

AYSO's Mission is to provide world class youth soccer programs that enrich children’s lives. As an ALL VOLUNTEER league, the key to our success is the willingness of ALL parents of children who participate to be actively involved in creating a successful environment for children and families.