Mekkonen was the winner of the 93rd Boston Marathon in 1989. He also competed for Ethiopia in the 1992 Olympics and 1996 Olympics in the marathon. He did not finish in the 1992 games and finished 81st with a time of 2:29:45 in the 1996 Summer Olympics.
His best time was 2:07:35 in the 1988 Beijing Marathon, which is still course record.
- Abebe Mekonnen at World Athletics
- Abebe Mekonnen at the International Olympic Committee
- Abebe Mekonnen at Olympics at Sports-Reference.com (archived)