Mersin İdmanyurdu took place in Group 1 in 1999 – 2000 Second League season . League was played in three stages . In the first stage 50 teams in five groups ( 10 clubs in each ) played for first two rankings to play in promotion group . The promotion group consisted of those 10 teams . At the end of the second stage top two teams promoted to 2000 – 01 First League . Remaining 8 teams in each ranking group played in classification groups , by carrying points and goals from ranking groups . Bottom two teams in Groups 2 , 4 , 5 relegated to 2000 – 01 Third League at the end of the season . Due to the earthquake that occurred on August 17 , 1999 , Sakaryaspor and Düzcespor in Group 1 and Darıca Gençlerbirliği in Group 3 withdrew from the league and demanded excuse . TFF has decided that the teams would not be relegated . One another worst team from Group 1 and two another worst teams in Group 3 had relegated at the end of the season . In the third stage , 8 clubs ( 3 from the promotion group and 1 each from 5 classification groups ) played one-leg play-off games in Antalya Atatürk Stadium to determine the third team to be promoted to First League
the earthquake
1999 İzmit earthquake
1999–2000 Mersin İdmanyurdu season