Wikipedia
Zeytinburnuspor
Zeytinburnu SK is a Turkish sports club established in 1953 and based in Zeytinburnu district of Istanbul, Turkey.
They hold the record for worst performance in First League history in the 96/97 season, losing 27 in 34 matches, 5 draws and 2 wins, success percentage was just 13.2%. They played First League between 1989–1991, 1993–1995 and 1996–1997. They played in Istanbul First Amateur League after relegating from Istanbul Super Amateur League in 2012–13 season. After 2 seasons in First Amateur League Zeytinburnuspor returned to Super Amateur League.