Bjoergen entered the sprint classic races with a 78-point cushion over her Polish rival and was nigh-on untouchable throughout as she extended her lead to 118 with yet another World Cup win.
However as much as Bjoergen won it Kowalczyk played her part in throwing it away, falling just over halfway through the sprint final in the Norwegian city.
Bjoergen recorded a winning time of 3:32.9minutes – nearly two seconds ahead of Astrid Uhrenholdt Jacobsen in second with Kowalczyk third 7.5 seconds behind the World Cup leader.
And, while Bjoergen was celebrating extending her lead, American Randall was toasting claiming the sprint World Cup Crystal Globe after reaching the semi-finals.
She faced a scare after losing her ski in the semi-final but recovered to cross the finish line and secure the sprint World Cup title with one race to go in Stockholm next week.
Meanwhile in the men’s sprint Eirik Brandsdal ensured Norway celebrated another win as he took victory ahead of Len Valjas despite the Canadian recording a lifetime best time.
Brandsdal powered home in 3:05.9 with Valjas 1.6seconds behind in second and Paal Golberg third another 1.6 behind as Teodor Peterson took the sprint World Cup title.
Peterson didn’t reach the final in Drammen but with second-placed overall Nikolay Morilov also not doing so his total of 571 points and lead of 111 points in unsurpassable with one round left.
Meanwhile Brandsdal said: “My goal was to be offensive and go as fast as I could all the time and I think I succeeded. I was using every opportunity to pass guys and I felt strong all day,” said Bransdal.
“My skis were amazing from the prologue to the final so great thanks goes to the waxers. Drammen is the best place to race sprint and I really like it here.”