Career
At the 2012 Summer Olympics she competed in the Women"s 63 kg. Her first and quickest performance was on the fourth day of the 2012 Summer Olympics on July 31, 2012 during the elimination round of 32 matches. In three rounds totaling only 46 seconds, she expeditiously defeated Palau"s 35-year-old Jennifer Anson.
In that match, Munkhzaya Tsedevsuren scored Ippon, the perfect score of 110 to 0.
In the 16th elimination round, she defeated Finland"s Johanna Ylinen with a score of 100 to 0. Munkhzaya Tsedevsuren fought for the bronze and lost to Japan"s Yoshie Ueno.