The 2026 Haier Bosphorus Challenger Cup was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Istanbul, Turkey between 18 and 23 May 2026.

Singles main-draw entrants Seeds Country Player Rank1 SeedPol Martín Tiffon2371Nikolás Sánchez Izquierdo2442Andrej Nedić2673Filip Cristian Jianu2724Franco Agamenone2735Andres Martin2776Hynek Bartoň2857Jonáš Forejtek2868 1 Rankings are as of 4 May 2026.

Other entrants The following players received wildcards into the singles main draw: Tuncay Duran Mert Naci Türker Kerem Yılmaz

The following player received entry into the singles main draw through the Junior Accelerator programme: Yannick Theodor Alexandrescou

The following players received entry into the singles main draw as alternates: David Jordà Sanchis Carlos Sánchez Jover Denis Yevseyev

The following players received entry from the qualifying draw: Alafia Ayeni Georgii Kravchenko Anton Matusevich Lucas Poullain Alejo Sánchez Quílez Paulo André Saraiva dos Santos

The following player received entry as a lucky loser: Daniel Dutra da Silva

Champions Singles

David Jordà Sanchis def. Andrej Nedić 6–4, 6–4.

Doubles

George Goldhoff / Theodore Winegar def. Filip Duda / Stefan Latinović 7–5, 6–2.

References