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Fall 2016 Registration Now Open!

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 15, 2016.  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 15th 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! 

2016 Registration Fees:

·   $125 per player Early Bird Special - must register by May 7th
·   $140 per player guaranteed placement registration June 15th 
·   $175 Waitlisted / Late Registration June 16th - July 31st   
·   August 1st - Fall registration is closed    

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 2015 or Spring 2016, you can click here to log in using your existing family profile (you can also reset your password if you have forgotten it).

Fall Program


Fall is our primary season, typically starting in early August. That’s when teams are formed & practices begin. Registration usually begins in April; please check the website frequently for updates.


Mt Diablo Soccer Association is an ALL VOLUNTEER organization – the success of our region is directly tied to the participation of our volunteers.  We are expecting over 1200 kids to take the fields this fall; if you have not yet volunteered to assist with the program, we urge you to contact one of our Board members to find out how you can help.   We have needs for talents in all areas, with volunteer training programs that are unmatched in the world of youth sports.  
Everyone PLAYS, Everyone VOLUNTEERS


Everybody plays. There is no special requirement for playing in the fall season, just a desire to have fun playing soccer. Teams are formed shortly after registration and balanced to ensure fair play. Practices usually start in mid to late August. Games usually start in late August or just after Labor Day weekend.  Games continue through about the second week in November. U10 and older teams will participate in the Mt. Diablo World Cup to determine who will represent Region 223 in the Area tournament before Thanksgiving.  

Age Guide for 2016-2017 Membership Year
Division Age Born Between
U-19 16-17-18 8/1/97 and 7/31/00
U-16 14-15 8/1/00 and 7/31/02
U-14 12-13 8/1/02 and 7/31/04
U-12 10-11 8/1/04 and 7/31/06
U-10 8-9 8/1/06 and 7/31/08
U-8 6-7 8/1/08 and 7/31/10
U-6 5 8/1/10 and 7/31/11
U-5 4 8/1/11 and 7/31/12
This age guide is for games and competitions that begin on or after Aug. 1, 2016. 


The 2016 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. 

  • Registrations received before 5/7 - $125 (early bird discount)
  • Registrations received between 5/8 - 6/14 - $140 (guaranteed placement)
  • Registration received after 6/15 - $175 (waitlisted / late registration)
Q: Does AYSO Region 223 have a Scholarship Policy?
Mt. Diablo Soccer has a Scholarship Request Form (pdf format) and there is a formal process for requesting and awarding scholarships as we feel strongly that it is important to be sensitive to the needs of our community.
Mt. Diablo Soccer is a non-profit organization and is run by volunteers.  Each player's registration fees help to cover costs associated with uniforms, insurance, equipment, field useage fees, maintenance and upkeep. We encourage famlieis to pay as much of the fees as possible to help Mt. Diablo Soccer cover these costs.
If considered for a scholarship, all that Mt. Diablo Soccer asks for in return, are several hours of parents time, signing up for one of our volunteer duties. The volunteer duties can range from: coaching and refereeing to registration, field maintenance and field marshall duties.
Scholarship Request Form (pdf format) may be dowdloaded and for privacy reasons may be filled out completely and submitted directly to our Registrar via email at