2015 Madrid, Moscow

2014 Washington

2010 San Diego

2009 French Open, Stuttgart, Beijing

2007 New Haven

2006 Miami, Bali, Beijing

2004 US Open, Eastbourne, Bali

2002 Helsinki, Bali

2013 Moscow

2012 Australian Open

2011 Dubai

2009 Miami

2006 Eastbourne

2005 Australian Open, Miami

2004 Gold Coast, Doha

2003 Gold Coast, Dubai, Rome, Toronto, Leipzig

2002 Sopot, Helsinki, Tokyo

2015 Madrid

2014 Oeiras

2011 Dubai

2009 Rome

2008 Sidney, Dubai, Indian Wells, Tokyo, Beijing

2007 Doha, Indian Wells, Berlin, Rome, US Open

2006 Warsaw, Roland Garros

2005 Warsaw

2004 Dubai, Doha, Warsaw, Beijing

2007 Dubai

2006 Dubai

2005 Dubai, Wimbledon

2004 Australian Open, Dubai, Indian Wells, Miami, Roland Garros, Eastbourne, US Open, Bali

2003 US Open

2002 Bali, Tokyo