The Porcupine Warriors were held to one all draw by their arch-rivals Hearts of Oak at the Baba Yara Sports Stadium.
Hearts of Oak maintained their unbeaten away record after snatching the equalizer in the second half.
Asante Kotoko broke the deadlock through former Bibiani Goldstars forward Kwame Boateng in the 17th minute.
Premiership debutant Patrick Razak cancelled the deficit in the 51st minute after a spectacular kick.
The Phobians still remain on top of the table with nine games to the end of the season.
Elsewhere, Two brace from Richmond Kojo Poku helped Sekondi Hasaacas to secure all the needed points over Dreams Fc.