Stroetinga, second in the first mass start of the season in Heerenveen and sixth at the second in Kolomna, upgraded to first in the third race on the calendar in Germany.
The Dutch skater crossed the line in 9:57.56minutes to deny Haralds Silovs of Latvia by 1.37seconds with Christijn Groeneveld taking third almost a second further back.
The 100 points collected for the win sees Stroetinga leapfrog Dutch teammate Groeneveld into the World Cup lead for the mass start event with 225 points to his rival’s 202.
Meanwhile in the men's 1500m, just 0.09 separated the top four with Denis Yuskov of Russia claiming his first win in the distance this season after clocking 1:46.07.
Second for Zbigniew Brodka, just 0.02 behind, saw him move to the top of the World Cup standings for the distance with previous leader Havard Bokko way down in 11th.
American Brian Hansen was third 0.07 behind Yuskov overall while the first of the Dutch skaters Koen Verweij was another 0.02 adrift for fourth.
The winning margin wasn't as close in the ladies' 3000m though as double Olympic champion Ireen Wust won by over three seconds ahead of Diane Valkenburg in second.
Just 0.10 separated Valkenburg in second and Martina Sablikova in third, with that enough to maintain the latter's lead at the top of the World Cup standings for the distance.