Norway’s Marte Olsbu Röiseland destroyed the opposition on Sunday to claim her third biathlon gold and fourth medal in as many races at the Beijing Olympics. World Cup leader Röiseland missed one target en route to victory in the 10-kilometre pursuit which comes after sprint and mixed relay gold plus 15km bronze, clocking 34 minutes 46.9 seconds. Röiseland held a 30-second lead at the start by virtue of the sprint win and steadily increased it, with Sweden’s Elvira Öberg getting silver as in the sprint, 1:36.9 minutes off the pace. Norway’s Tiril Eckhoff rose from 11th to bronze, another 12.2 …