2025 Izida Cup II

The 2025 Genesis Trading Cup II was a professional tennis tournament played on clay courts. It was the fourth edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Sofia, Bulgaria between 18 and 23 August 2025.

Singles main-draw entrants

¹ Rankings were as of 4 August 2025.

The following players received wildcards into the singles main draw:

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

The following player received entry into the singles main draw through the Next Gen Accelerator programme:

The following players received entry into the singles main draw as alternates:

The following players received entry from the qualifying draw:

The following players received entry as lucky losers:

Alex Molčan def. Joel Schwärzler 7–5, 6–4.

David Pichler / Nino Serdarušić def. Alexandru Jecan / Bogdan Pavel 4–6, 7–6, .