 Complete the following phrase:  The Gelora Bung Karno Madya Stadium  or simply Madya Stadium is a secondary stadium in Gelora Bung Karno Sports Complex with a capacity of 9,170. It is used mostly for track and field athletics training and events. It is located west-northwest of the complexs Main Stadium. Opened in December 1961, it was used as the venue for the 1962 Asian Games hockey event, during which it was known as Senayan Hockey Stadium or Senayan Open Stadium . After being used for greyhound race betting, the stadium was converted to an athletics stadium and hosted the 1985 Asian Athletics Championships. The stadium was used as the warm-up spot during the 