2009 Calabasas Pro Tennis Championships

The 2009 Calabasas Pro Tennis Championships was a professional tennis tournament played on outdoor hard courts. It was the ninth edition of the tournament which was part of the 2009 ATP Challenger Tour. It took place in Calabasas, California, United States between 19 and 25 October 2009.

Seeds

 * Rankings are as of October 12, 2009.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇮🇳 Prakash Amritraj
 * 🇺🇸 Steve Johnson
 * 🇺🇸 Bradley Klahn
 * Gary Sacks

The following players received entry from the qualifying draw:
 * Luka Gregorc
 * Cecil Mamiit
 * 🇮🇪 Louk Sorensen
 * 🇪🇸 Fernando Vicente

Singles
🇺🇸 Donald Young def. 🇺🇸 Michael Russell, 7–6(4), 6–1

Doubles
🇲🇽 Santiago González / 🇩🇪 Simon Stadler def. Treat Conrad Huey / 🇮🇳 Harsh Mankad, 6–2, 5–7, [10–4]