Tarjei Boe enjoyed most of his success relatively early in his career when he was one of the Norwegian young guns accompanying the great Ole Einar Bjoerndalen. He won the BMW IBU World Cup Total Score title in only his second season at the highest level in 2010/2011. In the same season he won a career-best five individual competitions, had 12 podiums and also became a World Champion in the individual in Khanty-Mansiysk, where he won five medals in six disciplines altogether. He collected nineteen more medals at the IBU World Championships, nine of them gold. Tarjei won at least one medal at each IBU World Championships after 2011 except Hochfilzen 2017. Together with Bjoerndalen, Emil Hegle Svendsen and Halvard Hanevold, Tarjei won gold in the men’s relay at the Vancouver 2010 Olympic Winter Games. He won silver with the men’s relay team at the Olympic Winter Games PyeongChang 2018. Tarjei and JT Boe are the only siblings with a Total Score title to their names.

Tarjei is known for his consistent excellence in relay competitions, his support for his brother (and fierce adversary) JT and his open and communicative personality.