In Lower Lusatia, he took part with the FV Brandenburg in the finals of the South Eastern German football championship.
[8] In 1932, PSV managed to reach the Central German football championship final against Dresdner SC to win 3–2 after extra-time.
In 1934–35 and 1935–36 seasons, PSV Chemnitz managed to win two titles in the Gauliga Sachsen, both in front of the Dresdner SC.
In the 1935–36 Reichsbundpokal (de), PSV won against Gauliga Südwest/Mainhessen team in the final, with Helmchen scoring nine goals in total.
In the 1936 German football championship group stage, PSV defeated Schalke 3–2 in front of 40,000 spectators in Dortmund's Stadion Rote Erde, and Helmchen contributed two goals to the win.
PSV was runner-up in the 1936–37 season, then third in 1938 and 1941, but it was no longer enough to make another entry into the final round of the German championship.
In the following season 1950–51, Helmchen won the championship with VfB in the Schleswig-Holstein-Liga, but failed in the promotion round to the upper league.
In 1951–52, he won the state league championship again with VfB, but the return to the Oberliga Nord was not successful at the second attempt.