2020 Diamond League in Brussels, Belgium held an event where two world records were broken. Mo Farah, a Somali-British runner went for the one-hour record held by Haile Gebrselassie.
This record was broken on March 30, 1991 by Arturo Barrios in Le Fleche, France, running 21,101 m. The same day he broke the 20,000 m record too. It was not until 2007 that Haile Gebrselassie broke Arturo's record on June 27, running 21,285 m.
Mo FARAH ran 2,330 m (13.25 miles) in one hour. He had three pacers and a light showing them the world record pace.
Mo Farah's pace was 2:49 min/Km (4:32 min/mile). He had to run each lap in 67.75 sec. Very impressive run!