[1][2] Garidmagnai made his senior international debut on 22 February 2003 in a 2003 East Asian Football Championship match again Macau.
He went on to make thirty-five appearances for the team, scoring two goals, before retiring in 2019.
[3] He was a player-coach for BCH Lions in 2020 as the team won the Mongolian First League title.
[5] He was named the men's team Manager of the Year by the MFF over both of the following two seasons.
[6] In July 2022 he was unveiled as the new head coach of Khovd FC of the Mongolian Premier League.