Sandhausen

After an initial period of financial instability, the club advanced steadily through the lower leagues until it earned promotion to the Bezirksliga Rhein-Saar in 1931, but only played for a single season at that level before descending again. In 1943, it was merged with TSV Walldorf and VfB Wiesloch to form the wartime squad KSG Walldorf-Wiesloch. The combined squad was dissolved at the end of the conflict and SG Sandhausen was reestablished as an independent club late in 1945. A half dozen years later it re-claimed its original name. Sandhausen played football in the Landesliga or 2. Amateurliga until 1956, when it advanced to the 1.Amateurliga Nordbaden. In 1977, the team finished as runner-up in the German amateur championship and progressed to the Oberliga Baden-Württemberg in 1978, where it consistently earned finishes in the upper half of the table. Sandhausen won three Oberliga titles through the 1980s and the German Amateur Championship in 1993. It won back-to-back Oberliga titles in 1995 and 2000 and, with its latest title in 2007, gained promotion to the Regionalliga Süd (III).

Negotiations held in late 2005 and early 2006 to merge Sandhausen with TSG 1899 Hoffenheim and FC Astoria Walldorf to create FC Heidelberg 06 were abandoned due to resistance to the idea on the part of both Sandhausen and Walldorf, and the failure to agree on whether the new side's stadium should be located in Heidelberg.

In the 2007–08 season, Sandhausen finished fifth in the Regionalliga Süd, which qualified the club for the newly created 3. Liga. After four seasons in the 3. Liga, the club won the 2011–12 title to earn promotion to the 2. Bundesliga for the first time.

Sandhausen finished its first 2. Bundesliga season in a relegation position but retained its place after MSV Duisburg were denied a licence for the following season. The club then established itself at the second level, avoiding relegation in each of the following ten seasons before finishing bottom in 2022–23, a defeat at 1. FC Heidenheim confirming its return to the 3. Liga with a game to spare after eleven seasons in the division.

Sandhausen did not return immediately, finishing eighth in 2023–24. The following season the club topped the table after 14 matches but then collapsed, losing its final nine games—equalling the division's record losing run—to finish 19th and drop into the Regionalliga Südwest. The relegation ended seventeen years of professional football for the club.