The PRO Assistant Referee


Home of the Professional Referee Organization's assistant referees working the professional leagues of the United States and Canada.


MLS Week in Review

Comprehensive look at decisions made by PRO assistant referees in last week's MLS matches.

PRO AR Manager's Report

Commentary and information from the PRO Manager of Assistant Referees (members only)

Instructional Materials

Assistant Referee instructional material for review.  Latest updates on the Laws of the Game from FIFA


Test your Assistant Referee skills and knowledge with a series of Perception Tests and Quizzes.