The Mutua Madrileña Madrid Open is a tournament for male and female professional tennis players, currently held in Madrid, Spain. The event is classified as an ATP World Tour Masters 1000 event on the Association of Tennis Professionals tour and a Premier Mandatory event on the Women's Tennis Association tour. From 1990 through 2008, the tournament was classified as an ATP Masters Series event on the men's tour. The event was held in Essen, Germany in 1995 and Stockholm, Sweden from 1990 through 1994. From 1996 through 2001, the event was held in Stuttgart, Germany and from 2003 through 2008 at the Madrid Arena. The tournament was played from 1990 through 2008 on indoor hardcourts. In 2009, the surface became clay courts, the venue was changed to the Park Manzanares, and the tournament was expanded to include WTA professionals.