Really distanced, Meraf Bahta set a Swedish record with 5.47.15 and deleted Sara Wedlund from the history books.
Sara Christiansson was also with 58.48.57 during Wedlund's time at 5.52.22 from 1995.
Niyonsaba had the help of hares up to 1200 meters before she took over herself.
Ethiopian Hailu Freweyni hung on and hit with 300 meters left.
Niyonsaba responded and was over four seconds ahead of Freweyni in goal and could jubilantly receive a big check for the effort.
Has won everything after the Olympics
Niyonsaba has been stopped from the favorite distance of 800 meters due to too high innate testosterone levels.
After the Olympics, where she was fifth in the 10,000 meters and was washed in the 5,000 meters for stepping inside the line, she has won everything she competed in - including the Diamond League final in the 5,000 meters.
Although the distance was rarely run, the previous record holder was qualified.
Genzebe Dibaba holds the world record of 1500 meters and ran indoors in Spain 2000 meters at 5.23.75 2017.
Daniel Ståhl continues to impress.
The entire podium from the Olympics was in place and Ståhl decided with his first discus throw directly in the first round with 67.79.
She celebrated with her competitors.
Lukas Weisshaidinger was second with 66.21 and Kristjan Ceh third with 65.17.
Simon Pettersson finished fourth in 64.77.