|Height||178 cm (JBC)|
|Weight||67 kg (JBC)|
|Captain Tsubasa (1981) manga chapter 90 "Big gathering in Paris!!"|
|Youth National||Germany Youth|
|Junior Youth National||West Germany Jr. Youth||3|
It is mentioned that sometimes between the International Jr. Youth Tournament and the World Youth preliminaries, Netherlands Youth defeated Germany 3-1.
World Youth Tournament
Mayer is among the players of Germany participating in the World Youth. They easily win the first two matches against Colombia and America in the group stage. However they are beaten 3-5 by Sweden in the last match of the stage. The Swedish team, had studied Germany extensively and used that knowledge to defeat the Germans, also injuring their keeper Müller in the process. Germany go on to win their quarter-final game against Argentina 3-2, but lose to Brazil in the semi-final by 0-5.