SpVgg Greuther Fürth secured a top-half finish courtesy of a 3-1 win over SV Sandhausen at the Stadion am Laubenweg.
MSV Duisburg gave themselves a lifeline in their battle to beat the drop after coming from two goals down to draw 2-2 with SV Sandhausen on the penultimate weekend of the Bundesliga 2 season.
Dimitris Diamantakos scored twice as Karlsruher SC beat neighbours SV Sandhausen 3-0 on Monday to record a third successive home win.
FSV Frankfurt 1899 remain mired in relegation trouble and just a point ahead of the relegation play-off spot after a 1-0 loss at SV Sandhausen.
RB Leipzig's chances of clinching promotion with the Bundesliga 2 title in tow were dented on Friday evening as they suffered a 1-0 loss on home soil against SV Sandhausen.
DSC Arminia Bielefeld beat SV Sandhausen 4-1 to secure their first win in nine games.
1. FC Kaiserslautern all but put fears of relegation to bed thanks to a 2-0 win over SV Sandhausen on Sunday.
FC St. Pauli moved to within five points of the promotion-play-off place, temporarily at least, thanks to a comfortable 2-0 win away to SV Sandhausen on Saturday.
SV Sandhausen pulled nine points clear of the relegation zone with a 1-0 win over struggling Fortuna Düsseldorf.
TSV 1860 Munich pulled out of the relegation zone, edging a five-goal thriller with SV Sandhausen 3-2 on Friday evening.