Francisco Seco / dpa
At the Diamond League meeting of the athletes in Brussels, two of the three announced world record attempts were successful.
The four-time Olympic champion Mo Farah set a record over an hour with 21,330 meters.
In the King Baudouin Stadium in Brussels, the 37-year-old British runner improved the Ethiopian Haile Gebrselassie's 13-year-old world record of 21,285 meters on Friday.
At the same time, the Dutchman Jos Hermens lost the European record, which he had held since 1976 with 20,944 meters.
Farah celebrated the greatest successes over 5000 and 10,000 meters.
In addition to four Olympic golds, he also won six world titles on these routes.
Most recently he started mainly over the marathon distance.
For him it was the first race of the year.
Photo: Jasper Jacobs / dpa
Sifan Hassan improved the world hour record for women.
The Dutch ran 18,930 meters, 413 meters further than the Ethiopian Dire Tuna in 2008 in Ostrava.
At the same time, Hassan, world champion over 1500 and 10,000 meters, beat the European record set by Italian Silvana Cruciata (18 084 meters) in 1981.
The world record attempt over 1000 meters by Kenyan Faith Kipyegon failed with 2: 29.92 minutes.
So she stayed well below the mark of Russian Swetlana Masterkova (2: 28.98 minutes), which she has held since 1996.
At the Diamond League meeting in Monaco, Kipyegon only missed the world record by 17 hundredths of a second.
Indoor world record holder Armand Duplantis continued his streak of success in the pole vault with the 13th victory.
The Swede won with 6.00 meters and then failed twice at the world record height of 6.15 meters.
Over 1500 meters, the Wattenscheider Marius Probst reached seventh place in his first Diamond League start in 3: 38.50 minutes.
European record holder Jakob Ingebrigtsen (Norway) won in 3: 30.69 minutes.
Probst was the only German starter in Brussels.
Icon: The mirror
ara / dpa