The 2026 Internazionali di Tennis San Marino Open was a professional tennis tournament played on clay courts. The 33rd edition of the tournament, which was part of the 2026 ATP Challenger Tour, took place in City of San Marino, San Marino between 27 July and 2 August 2026.

Singles main-draw entrants Seeds Country Player Rank1 SeedFacundo Díaz Acosta1081Otto Virtanen1252Vilius Gaubas1283Nikoloz Basilashvili1304Alexandre Müller1335Andrea Pellegrino1386Hugo Dellien1447Francesco Maestrelli1498 1 Rankings are as of 20 July 2026.

Other entrants The following players received wildcards into the singles main draw: Carlo Alberto Caniato Filippo Romano Jacopo Vasamì

The following player received entry into the singles main draw using a protected ranking: Federico Coria

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

The following players received entry into the singles main draw as alternates: Franco Agamenone Daniel Rincón

The following players received entry from the qualifying draw: Tommaso Compagnucci Enrico Dalla Valle Thiago Monteiro Mili Poljičak Juan Pablo Varillas Michael Vrbenský

The following player received entry as a lucky loser: Francesco Forti

Champions Singles

Facundo Díaz Acosta def. Mili Poljičak 6–1, 6–4.

Doubles

Stefan Latinović / Mili Poljičak def. Arthur Reymond / Luca Sanchez 7–6(7–5), 6–3.

References