The 2026 Plovdiv Challenger III was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Plovdiv, Bulgaria between 31 August and 6 September 2026.

Singles main-draw entrants Seeds Country Player Rank1 SeedPol Martín Tiffon2101Maxim Mrva2112Juan Manuel La Serna2833Franco Agamenone2854Petr Nesterov3005Calvin Hemery3256Marko Topo3397Ognjen Milić3438 1 Rankings are as of 24 August 2026.

Other entrants The following players received wildcards into the singles main draw: George Lazarov Yanaki Milev Alexander Vasilev

The following player received entry into the singles main draw as an alternate: Filip Jeff Planinšek

The following players received entry from the qualifying draw: Federico Iannaccone Nikita Mashtakov Oleksandr Ovcharenko Ignacio Parisca Stefan Popović Giorgio Tabacco

Champions Singles

Georgii Kravchenko def. Yanaki Milev 6–0, 6–2.

Doubles

Valerio Aboian / Juan Manuel La Serna def. Anthony Genov / Oleksandr Ovcharenko 4–6, 7–5, [10–8].

References