[3] He is the current road race champion of Mongolia and a medalist at the Asian Games.
[4] Sainbayaryn achieved his first professional win at the Tour of Fuzhou, where he won the Queen stage.
[6] He wore the white jersey as the best placed Asian rider for the first two stages of the Tour de Langkawi.
[8][9] On the Queen stage of the 2023 Tour of Thailand Sainbayaryn finished in the yellow jersey group moving him up to third overall.
[10] In late 2023 Sainbayaryn signed a one-year contract with UCI ProTeam Burgos BH for the 2024 season.