Career
Altantuyaa competed for Mongolia in the women"s 100 m freestyle at the 2000 Summer Olympics in Sydney. She received a ticket from FINA, under a Universality program, in an entry time of 1:04.00. She challenged seven other swimmers in heat one, including 15-year-olds Maria Awori of Kenya Nathalie Lee Baw of Mauritius.
Diving in with the slowest reaction of 1.13 seconds, Altantuyaa fought her way from behind the pack to save a seventh spot over Tajikistan"s Katerina Izmaylova by almost nine seconds in 1:10.22.
Altantuyaa failed to advance into the semifinals, as she placed fifty-third overall in the prelims.