Rules for classification: 1) points; 2) goal difference; 3) number of goals scored 1Finalists of 1998-99 Turkish Cup, Galatasaray and Beşiktaş, qualified for 1999-00 UEFA Champions League. A play-off match organized between the loser semi-finalists. Ankaragücü beat Sakaryaspor (5-0) and qualified for the 1999-00 UEFA Cup qualifying round. (C) = Champion; (R) = Relegated; (P) = Promoted; (E) = Eliminated; (O) = Play-off winner; (A) = Advances to a further round.
Only applicable when the season is not finished: (Q) = Qualified to the phase of tournament indicated; (TQ) = Qualified to tournament, but not yet to the particular phase indicated; (RQ) = Qualified to the relegation tournament indicated; (DQ) = Disqualified from tournament.