Running
21K - Half Marathon
21.1 km
977m

Running
21K - Half Marathon
21.1 km
977m
Running
10K
10 km
468m
Running
5K
5 km
155m
A scenic half marathon and related races held on the island of Büyükada in the Princes’ Islands, organized with a focus on running experience design and island heritage.
Liquid and nutrition stations available on the course; refreshments served at the finish area in front of Adalar Kültür Merkezi.
Pacers will be present on the course with designated target times per start wave; look for Pacer flag markers to help maintain your target finish time.
Monthly averages based on historical data (2000–present).
Registration is done online via credit card or EFT/Money Transfer at the official registration page. Complete the form and pay the fee to confirm.
5K, 10K, and Half Marathon (21K) for both women and men, with age categories 18-35, 36-45, 46-55, and 56+.
Early (Dec 22, 2025–Mar 1, 2026): 5K 1300 TL, 10K 1400 TL, Half 21K 1400 TL; Normal (Mar 1–Aug 31): 5K 1500 TL, 10K 1600 TL, Half 1600 TL; Late (Sep 1–20): 5K 1700 TL, 10K 1800 TL, Half 1800 TL.
Yes, the event is capped at 3,500 participants and registrations close once full.
No refunds or postponements are available. Registration fees and ID numbers cannot be transferred to another person.
Last updated: Jun 5, 2026, 11:41:43 PM
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