Over the last 12 months Walter Lopez Castellanos has refereed 9 games, comprising 3 CONCACAF Nations League games, 3 CONCACAF Champions League games and 3 CONCACAF Gold Cup games. In addition he has been the Fourth Official 7 times.
During this period he has issued 0 yellow card at a rate of 0 per game and 0 red card at a rate of 0 per game.
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