The 2009 San Marino CEPU Open was a professional tennis tournament played on outdoor red clay courts. It was the twenty-first edition of the tournament which was part of the Tretorn SERIE+ of the 2009 ATP Challenger Tour. It took place in City of San Marino, San Marino between 3 and 9 August 2009.
The following players received wildcards into the singles main draw:
The following players received a Special Exempt into the main draw:
The following players received entry from the qualifying draw:
Andreas Seppi def. Potito Starace, 7âÂÂ6(4), 2âÂÂ6, 6âÂÂ4
Lucas Arnold Ker / Sebastián Prieto def. Johan Brunström / Jean-Julien Rojer, 7âÂÂ6(4), 2âÂÂ6, [10âÂÂ7]
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