Michigan Tech

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2025: Placed 16th in the 5,000m in his GLIAC Outdoor Track & Field Championships debut (Apr. 30-May 2)... Ran a personal-best time of 4:12.82 in the 1,500m at the Gary Wilson Invitational (Apr. 23)... Ran a personal-best time of 15:26.69 in the 5,000m at the UW-Platteville Invitational (Apr. 11)...
High School: Apul is a two-time Ohio State Championship qualifier in cross country (2023) and indoor track & field (2024) in the 3,200m and was a part of the 4x800m relay. He helped the Cougars win the NLL Conference Championship in 2023 and an NLL Conference runner-up finish in 2024. He holds personal-bests of 9:25 for 3,200m and 15:46 over 5,000m in cross country. 
Personal: Derin is the son of Tolga Apul and Defne Apul and has one sibling. He plans to earn a degree in Electrical Engineering while at Tech.