In honor of National Mobility Awareness Month in May, USOpen.org is taking a look at the US Open Wheelchair Competition.

In 2005, the US Open became the second Grand Slam to welcome wheelchair tennis to its program, with the debut of the US Open Wheelchair Competition.

The rules in wheelchair tennis are the same as in able-bodied tennis, with the lone exception being that wheelchair players are allowed two bounces of the ball.

When the wheelchair competition started, only men’s and women’s champions were crowned. Since then, it has expanded to include a total of six events: men’s singles, women’s singles, men’s doubles, women’s doubles, quad singles and quad doubles.

The tournament consists of 20 of the world’s elite players, who are vying for America’s greatest crown and a total purse of $200,000.

In 2017, the US Open debuted the USO Wheelchair competition in Arthur Ashe Stadium, the largest tennis arena among the Grand Slam tournaments.

Here is a list of champions from the US Open Wheelchair Competition from 2005-17:

Men's Singles Champions
2017 - Stephane Houdet (FRA) 
2016 - Not held due to the Paralympic Games
2015 - Shingo Kunieda (JPN) 
2014 - Shingo Kunieda (JPN) 
2013 - Stephane Houdet (FRA) 
2012 - Not held due to the Paralympic Games
2011 - Shingo Kunieda (JPN) 
2010 - Shingo Kunieda (JPN) 
2009 - Shingo Kunieda (JPN) 
2008 - Not held due to the Paralympic Games
2007 - Shingo Kunieda (JPN) 
2006 - Robin Ammerlaan (NED)
2005 - Robin Ammerlaan (NED) 

Women's Singles Champions
2017 - Yui Kamiji (JPN)
2016 - Not held due to the Paralympic Games
2015 - Jordanne Whiley (GBR)
2014 - Yui Kamiji (JPN) 
2013 - Aniek Van Koot (NED)
2012 - Not held due to the Paralympic Games
2011 - Esther Vergeer (NED)
2010 - Esther Vergeer (NED)
2009 - Esther Vergeer (NED)
2008 - Not held due to the Paralympic Games
2007 - Esther Vergeer (NED)
2006 - Esther Vergeer (NED)
2005 - Esther Vergeer (NED)

Men's Doubles Champions
2017 - Alfie Hewett (GBR) - Gordon Reid (GBR)
2016 - Not held due to the Paralympic Games
2015 - Stephane Houdet (FRA) - Gordon Reid (GBR) 
2014 - Stephane Houdet (FRA) - Shingo Kunieda (JPN) 
2013 - Michael Jeremiasz (FRA) - Maikel Scheffers (NED) 
2012 - Not held due to the Paralympic Games
2011 - Stephane Houdet (FRA) - Nicolas Peifer (FRA) 
2010 - Maikel Scheffers (NED) - Ronald Vink (NED) 
2009 - Stephane Houdet (FRA) - Stefan Olsson (SWE) 
2008 - Not held due to the Paralympic Games
2007 - Shingo Kunieda (JPN) - Satoshi Saida (JPN) 
2006 - Robin Ammerlaan (NED) - Michael Jeremiasz (FRA) 
2005 - Robin Ammerlaan (NED) - Michael Jeremiasz (FRA) 

Women's Doubles Champions
2017 - Marjolein Buis (NED) - Diede de Groot (NED) 
2016 - Not held due to the Paralympic Games
2015 - Jiske Griffioen (NED) - Aniek Van Koot (NED) 
2014 - Yui Kamiji (JPN) - Jordanne Whiley (GBR)
2013 - Jiske Griffioen (NED) - Aniek Van Koot (NED)
2012 - Not held due to the Paralympic Games
2011 - Esther Vergeer (NED) - Sharon Walraven (NED)
2010 - Esther Vergeer (NED) - Sharon Walraven (NED)
2009 - Korie Homan (NED) - Esther Vergeer (NED)
2008 - Not held due to the Paralympic Games
2007 - Jiske Griffioen (NED) - Esther Vergeer (NED) 
2006 - Jiske Griffioen (NED) - Esther Vergeer (NED) 
2005 - Korie Homan (NED) - Esther Vergeer (NED) 

Quad Singles Champions
2017 - David Wagner (USA)
2016 - Not held due to the Paralympic Games
2015 - Dylan Alcott (AUS) 
2014 - Andy Lapthorne (GBR) 
2013 - Lucas Sithole (RSA) 
2012 - Not held due to the Paralympic Games
2011 - David Wagner (USA) 
2010 - David Wagner (USA) 
2009 - Peter Norfolk (GBR) 
2008 - Not held due to the Paralympic Games
2007 - Peter Norfolk (GBR) 

Quad Doubles Champions
2017 - Andy Lapthorne (GBR) - David Wagner (USA)
2016 - Not held due to the Paralympic Games
2015 - Nick Taylor (USA) - David Wagner (USA) 
2014 - Nick Taylor (USA) - David Wagner (USA) 
2013 - Nick Taylor (USA) - David Wagner (USA) 
2012 - Not held due to the Paralympic Games
2011 - Nick Taylor (USA) - David Wagner (USA)
2010 - Nick Taylor (USA) - David Wagner (USA) 
2009 - Nick Taylor (USA) - David Wagner (USA) 
2008 - Not held due to the Paralympic Games
2007 - Nick Taylor (USA) - David Wagner (USA)