Jiesan first participated at the Simlympics in July 2009, and has sent athletes to compete in every Summer Olympic Games since then. Jiesan has also participated in every Winter Simlympic Games since February 2010.
Jiesanese athletes, although new to the Simlympics, have accumulated a total of eight Simlympic medals, with most coming from the country's focus sports of archery and tennis.
The National Simlympic Committee for Jiesan is the Jiesanese Simlympic Committee, and was founded in 2009.
Medals by Simlympics
|-||New Rhodesia 2006||Did not participate|
|-||New Dunstonville 2006|
|-||Windsor Park 2007||Cancelled|
|-||Penthesili 2008||Did not participate|
|-||Tourist City 2009|
Medals by sport