 She first rose to prominence in memory sports in 2014 by winning the team gold medal as well as first place in names and faces at the World Memory Championships 2014 in Haikou, China during her first year of memory training, at the age of 20.In December 2017, she broke two world records at the 2017 World Memory Championships in Jakarta, Indonesia by memorizing 212 names and faces in 15 minutes and 354 random images in 5 minutes.In August 2018, Yanjaa broke a third world record at the Korean Memory Championships 2018 by memorizing 145 random words in 5 minutes.