[1] During the years 1930–31, he and thirteen teammates were banned for a relatively minor infraction of the strict amateur statutes, having received ten instead of the allowed five Reichsmark as compensation for playing in an away game.

In the following years, Kuzorra along with his brother-in-law Fritz Szepan led Schalke to become the dominant team in German soccer, winning six national championships from 1934 to 1942.

Great efforts were made to show that Kuzorra, despite his Slavic sounding name and mixed origin, was in fact of purely Germanic stock.

The success of these efforts was limited, however, as Kuzorra remained politically uninterested and due to his taciturn character a poor instrument for public campaigns.

After the war, Kuzorra remained playing for a few years, mainly for material reasons - at the time, soccer players were often reimbursed in otherwise scarce foodstuff.