The first half of the 2009–10 Biathlon World Cup season marked Burke's breakthrough to the absolute elite of biathlon. In an individual 20 km competition at Östersund, Sweden, the opener of the 2009–10 World Cup season, Burke became the second ever US biathlete to finish 2nd in a Biathlon World Cup competition. (Josh Thompson had been the first.) Burke continued to produce solid results in the following competitions, consistently finishing in the top 20. This solidity – combined with the absence of Norwegian World Cup leader Emil Hegle Svendsen from the third competition weekend at Pokljuka, Slovenia and the disastrous 103rd place of Austria's Christoph Sumann in the Pokljuka sprint – meant that on December 20, 2009 Burke, despite never winning a World Cup race, became the first ever US biathlete to capture the overall World Cup lead.