Jorrit Bergsma became Dutch champion in the 5,000 meters for the second time in his career on Friday.
De Fries beat his direct competitor Patrick Roest with 6.07.30.
Sven Kramer finished fifth and seems to qualify for the World Cup competitions.
The 35-year-old Bergsma surprised three-time Dutch champion Roest in the eighth stage.
After a fast start from Roest, Bergsma had no answer to Bergsma's gears.
Roest's track record (6,05,14) was not endangered in Heerenveen.
For Bergsma it was his second national title in the 5,000 meters.
He became Dutch champion at this distance in 2011 and also became Dutch champion six times in the 10,000 meters.
Since then, Kramer (six) and Roest (3) have won the next nine titles in the 5,000 meters.
Behind Bergsma, Roest (6.10.84) and Marwin Talsma (6.14.31) finished on the podium in Thialf.
Earlier on Friday, Kai Verbij and Antoinette de Jong conquered the titles in the 500 and 1,500 meters.
See also: View the program and the results of the Dutch National Championships here
Kramer remains in the race for World Cup competitions
Kramer did not come close to the podium places in the 5,000 meters with 6.16.06.
The 35-year-old Frisian finished in fifth place and therefore remains in the race for the tickets for the first two World Cup competitions of the season.
In the NK distances, in principle, the best five per distance qualify for the World Cup competitions, but the 3,000 meters (women) and 5,000 meters (men) are an exception.
Kramer only knows after the 10,000 meters whether his ticket has finally been received.
Skating season 2021/2022
October 29-31: Dutch Championship distances (Heerenveen)
November 12-14: World Cup 1 (Tomaszów Mazowiecki)
November 19-21: World Cup 2 (Stavanger)
December 3-5: World Cup 3 (Salt Lake City)
December 10-12: World Cup 4 (Calgary)
December 26-30: Olympic qualifying tournament (Heerenveen)
January 7-9: European Championship distances (Heerenveen)
January 22-23: National Championships allround and sprint (Heerenveen)
February 4-20: Olympic Games (Beijing)
March 3-6: World Allround and Sprint Championships (Hamar)
March 12-13: World Cup Final (Heerenveen)