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American Youth Soccer Organization Providing world class youth soccer programs that enrich children's lives.

Welcome to Walnut AYSO Region 624


Fall 2023 Online Referee Sign-ups for 10U-19U Games @ MatchTrak:  

  • All referees must register for the Fall 2023 season at MatchTrak
  • All referees must have completed their Regional Referee Training or higher
  • All referees must have taken Safe Haven and CDC Concussion Awareness, and Sudden Cardiac Arrest Training
  • You will receive an email confirmation when approved to referee and sign-up for games

Referee Game Assignment Rules

  • Check in at the Ref Tent a minimum of 30 minutes prior to your game assignment
  • One point per game is awarded to the referee's team for all games
  • Max 5 points per week per team!

Referee Scheduling:

  • Drops:  Cut-off for referees to drop games are Friday night at 10pm. If you miss this cut off for drops, e-mail us at [email protected]
  • Sign-up Cut-offs:  Friday at 10pm prior to Saturday's games. (Allows the referee staff time to format and print game day assignments)
  • Missed Sign Ups: Come to the referee tent on game day earlier in the day to see if we can find a game for you. 

National Partners

Region 624 Contacts

Walnut AYSO - Region 624

20687-2 Amar Road #811 
Walnut, California 91789

Email Us: [email protected]
Phone : 909-551-1238
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