Over the last 12 months Frank Willenborg has refereed 19 games, comprising 11 Bundesliga games, 7 2.Bundesliga games and 1 DFB-Pokal game. In addition he has been the Fourth Official 44 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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