The Freestyle wrestling events of the XXX Summer Olympic Games are to start with the Women's 48 kg and 63 kg Qualifications and the champions will be announced the same day on August 08, 2012. 

Mongolian freestyle wrestlers D.Otgontsetseg and S.Battsetseg will compete in the Women's 48 kg and 63 kg events. In her first round or Qualifications, Silver medalist from the 2011 World Championships D.Otgontsetseg (48kg) will be faced against Columbian wrestler Carolina Castillo and if she wins she will compete against Nina Iwona Matkowska (Poland) or Alejandra Patricia Bermudez (Argentina) depending on who wins in the 1/8 Finals. The D.Otgontsetseg - C.Carolina bout to start at 01:00 pm by London Time or 08:00 pm by Ulaanbaatar Time. Whereas, World Champion, State Merit Athlete S.Battsetseg (63kg) who had a Bye in the first round will wrestle with Sylvie Datty-Ngonga Tara-Agoue from Central African Republic at the 1/8 Finals. The wrestling will start at 01:40 pm by London Time or 08:40 pm by Ulaanbaatar Time.

Was born on September 26, 1990 in Darkhan-Uul aimag, Height 155 cm, started practicing freestyle wrestling since 2004 and participating in her first Olympic Games. 

2008 Asian Freestyle Wrestling Junior Championships - Gold medal

2009 Asian Championships - Bronze medal 

2009, 2010 World Freestyle Wrestling Junior Championships - Bronze medal

2011 World Cup - Bronze medal

2011 Asian Championships - Silver medal 

2011 World Championships - Silver medal

2012 World Cup - Gold medal

Was born on May 03, 1990 in Arkhangai aimag, Height 170 cm, started practicing freestyle wrestling since 2006 and participating in her first Olympic Games. 

2007 Asian Freestyle Wrestling Junior Championships - Silver medal

2009 Asian Freestyle Wrestling Junior Championships - Gold medal

2009 World Championships - the 5th place

2010 Asian Championships - Silver medal

2010 World Championships - Gold medal

2011 World Cup - Bronze medal

2012 Mongolia Open Tournament - Gold medal