Rot-weiss Oberhausen

The team was unremarked through its early history, simply playing local ball. After the re-organization of German football in the early 1930s under the Third Reich Rot Weiss played in the Gauliga Niederrhein but could never match the strength of division rival Fortuna Düsseldorf. During World War II the club played alongside ASV Elmar as part of the combined wartime side KSG Elmar/Viktoria Oberhausen.

The club worked its way into the upper league Oberliga West after the war and with the formation of the Bundesliga, Germany's new professional circuit, found themselves in the second division Regionalliga West. A first-place finish there in 1969 led to promotion to the Bundesliga for the workmanlike side. The club's turn in the top flight was tainted when they were implicated in the Bundesliga bribery scandal of 1971. While it was clear they were involved, the club and its players escaped sanction. After three years in the upper league without doing any better than a 14th-place finish, the club returned to its existence as a tier II and III side.

Financial problems in 1988 were the prelude to a slide into the Verbandsliga Niederrhein (IV) two years later. After nearly a decade spent bouncing up and down between the third and fourth divisions Die Kleeblätter returned to the 2. Bundesliga in 1998, winning the Regionalliga West/Südwest. They remained a lower table side for the most part, but did manage to put forward their best ever performances with sixth and fifth-place finishes in 2000 and 2004. Oberhausen was relegated again to the Regionalliga Nord (III) for 2005. Relegation to the Oberliga (IV) followed a year later. They returned to 2. Bundesliga after two successively promotions; which were first in the Oberliga Nordrhein in 2006–07 and second of Regionalliga Nord in 2007–08 season. The club dropped out of the 2. Bundesliga in 2011, was relegated again the following year from the 3. Liga and now plays in the tier four Regionalliga West.