English Despite the sometimes exciting events unfolding in the races for the World Cup, biathlon cannot overcome the popularity of sports such as football, hockey and basketball. Bets on biathlon are often absent even at the best-known bookmakers. For these reasons, it is impossible to have a surebet.
Thus, in response to your question, it can be said that a surebet on biathlon exists, but it is truly very rare. It is impossible to make money under these conditions.