Jonathan Sowah scored the opener in the 14th minute and Vincent Atingah fired from the penalty spot in the 78th minute.
Kotoko could not match the defensive strength of the Tarkwa-based outfit after conceding in the first half.
The Reds failed to equalize and after the break, the desperation upfront created a lot of openings in their backline.
It was through one of these lapses in defensive play that resulted in a penalty for the visitors.
And Atingah, an experienced defender noted for his trademark penalty goals, slotted home calmly.
Kotoko will look to return to winning ways when they play Legon Cities away while Medeama host Gold Stars at Tarkwa.
Asante Kotoko got stunned by Medeama SC at the Baba Yara Sports Stadium on Sunday evening on match-week 23 of the 2022/23 Ghana Premier League.
The Porcupines failed to capitalize on the 2-2 draw between Aduana and RTU to reduce the leaders’ gap from five points to three points
They lost 0-2 to the Yellow and Mauves and this is their third defeat in the last five games.Jonathan Sowah scored the opener in the 14th minute and Vincent Atingah fired from the penalty spot in the 78th minute.
Kotoko could not match the defensive strength of the Tarkwa-based outfit after conceding in the first half.
The Reds failed to equalize and after the break, the desperation upfront created a lot of openings in their backline.
It was through one of these lapses in defensive play that resulted in a penalty for the visitors.
And Atingah, an experienced defender noted for his trademark penalty goals, slotted home calmly.
Kotoko will look to return to winning ways when they play Legon Cities away while Medeama host Gold Stars at Tarkwa.