He beat the Polish compatriot as well as the reigning Olympic champion Wojciech Nowicki in a tough duel.
After his last throw, Fajdek went down on his knees and kissed the ring, which he also did with the podium.
With five straight golds, he is equal to the discus thrower Lars Riedl who won five World Cup golds between 1991 and 2001 (also a bronze in 1999) and one after the pole vaulter Sergej Bubka who won six straight World Cup golds between 1983 and 1997. Then it was four years between the first three games.
Now 33-year-old Fajdek is looking for the Ukrainian's historical record and wants to win seven titles.
- I want more.
My goal is seven titles.
I want to be the first and no one has ever done that, Fajdek told Reuters.
Just a bronze from the Olympics
Fajdek's victory throw of 81.98 is the world year's best and once again Fajdek showed that he is the best when it comes to.
- This is the competition that means the most during the year and I am happy that the most important gold is in my hand for the fifth time, says Fajdek who during his World Cup suite did not have as great success in the Olympics.
A bronze from last year is all he got from there.
In 2012 and 2016, he did not even reach the final.
Olympic champion Nowicki was, after all, happy with a silver.
- I am glad that no one could share us on the podium, he says.