Koçak was discovered as a track athlete by the physical education teacher and athletics coach Cahit Demir, while she was grazing animals at her village Üzengili intown, karayazı, Erzurum, eastern Turkey, a location situated at 1,450 m (4,760 ft) above mean sea level.[3] Demir convinced her father to take her for training at Karayazı town, where he was working.[3] At the age of sixteen, she transferred to Fenerbahçe Athletics in Istanbul.[1][3]
On 15 May 2022 in Mersin, she broke the 15-year-old Turkish women's U18 record in the 800 m event with a time of 2:06.95. Two weeks later, on 29 May in Bursa, she renewed her own record with 2:04.35.[3]
Koçak participated at the 2022 World Athletics U20 Championships in Cali, Colombia. She competed in the semifinal of the 800 m event, and in the final of the 1500 m event. She set a new Turkish U18 record in the 1500 m with her time of 4:14.90, which is more than five seconds better than the previous record.[4]
At the 2023 European Athletics U20 Championships in Jerusalem, Israel, she won the bronze medal in the 800 m event, and became European U20 champion in the 1500 m event.[1][5]
She competed in the 800 m event at the 2025 European Athletics Team Championships Second Division in Maribor, Slovenia, and placed sixth with her season's best time of 2:03.29. She contributed to her team's record with eleven points.[6]
