The Calabasas Pro Tennis Championships is a tennis tournament held in Calabasas, California, United States since 2001. The event was part of the ATP Challenger Tour from 2001 until 2010. However, since 2012 the tournament has been part of the ITF Men's Circuit. It is played on outdoor hard courts. Former French Open champion Michael Chang won the event in 2002.
Past finals
Singles
| Year
 | 
Champion
 | 
Runner-up
 | 
Score
 | 
| 2010 | 
  Marinko Matosevic | 
  Ryan Sweeting | 
2–6, 6–4, 6–3
 | 
| 2009 | 
  Donald Young | 
  Michael Russell | 
7–6(4), 6–1
 | 
| 2008 | 
  Vince Spadea | 
  Sam Warburg | 
7–6, 6–4
 | 
| 2007 | 
  Robert Kendrick | 
  Donald Young | 
3–6, 7–6, 6–4
 | 
| 2006 | 
  Mark Philippoussis | 
  Amer Delic | 
6–7, 7–6, 6–3
 | 
| 2005 | 
  Brian Vahaly | 
  Denis Gremelmayr | 
3–6, 6–2, 6–2
 | 
| 2004 | 
  Ivo Karlović | 
  Alex Bogomolov Jr. | 
7–6, 6–3
 | 
| 2003 | 
  Jérôme Golmard | 
  Lars Burgsmüller | 
6–3, 7–5
 | 
| 2002 | 
  Michael Chang | 
  Cecil Mamiit | 
6–3, 7–5
 | 
| 2001 | 
  André Sá | 
  Michael Russell | 
4–6, 6–2, 6–4
 | 
Doubles
| Year
 | 
Champion
 | 
Runner-up
 | 
Score
 | 
| 2010
 | 
  Ryan Harrison     Travis Rettenmaier
 | 
  Rik de Voest     Bobby Reynolds
 | 
6–3, 6–3
 | 
| 2009
 | 
  Santiago González     Simon Stadler
 | 
  Treat Conrad Huey     Harsh Mankad
 | 
6–2, 5–7, [10–4]
 | 
| 2008
 | 
  Ilija Bozoljac     Dušan Vemić
 | 
  Somdev Devvarman     Nathan Healey
 | 
1–6, 6–3, [13–11]
 | 
| 2007
 | 
  John Isner     Brian Wilson
 | 
  Robert Kendrick     Cecil Mamiit
 | 
7–6, 4–6, [10–8]
 | 
| 2006
 | 
  Robert Kendrick     Cecil Mamiit
 | 
  Harel Levy     Sam Warburg
 | 
5–7, 6–4, [10–5]
 | 
| 2005
 | 
  Amer Delic     Bobby Reynolds
 | 
  Zbynek Mlynarik     Glenn Weiner
 | 
7–5, 7–6
 | 
| 2004
 | 
  Graydon Oliver     Travis Parrott
 | 
  Ivo Klec     Robert Lindstedt
 | 
7–5, 6–3
 | 
| 2003
 | 
  Justin Gimelstob     Scott Humphries
 | 
  Kevin Kim     Jim Thomas
 | 
6–3, 6–3
 | 
| 2002
 | 
  Paul Rosner     Glenn Weiner
 | 
  Justin Gimelstob     Paul Goldstein
 | 
6–2, 4–6, 7–6
 | 
| 2001
 | 
  Ota Fukárek     Ivo Heuberger
 | 
  Paul Hanley     Nathan Healey
 | 
7–5, 3–6, 7–6
 | 
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