Arina Jienbalanova was born in 1992. From 15 years old. Arina deals with athletics and becomes Kazakhstan Champion in athletics (3km) and International Tournament “Children of Asia” (3 km). From 18 years old Arina deals with Modern pentathlon.

Arina is an International Class Master of Sports in Modern Pentathlon, Champion of Kazakhstan, finalist of Juniors World Championship, Mixed Relay Silver winner of Juniors Championship in Poland.

Arina is the Champion of Asia in relay program and silver winner in personal competition.

Champion of the RoK (2011), Asian Championship bronze winner in Relay in Chengdu (China) in 2011, participant of Juniors Championship in Szekesfehervar (Hungary) in 2010, participant of Juniors International Tournament in Mansfield (England) in 2007.