Joshua Cheptegei broke the 5Km world record on Sunday with a time of 12 minutes 51 seconds during the Monaco run.
The 10,000m world champion did it in a time of 12:51 to beat the previous World record mark that was 13:29.
This was the second edition of this race and the Ugandan improved on Kenyan Rhonex Kipruto’s previous of 13min 18 seconds last month in Valencia, Spain.
The other previous fastest ever time for the distance was set by Sammy Kipketer who clocked 13:00 mins in Carlsbad in 2000 before it was an official event.
Cheptegei excelled at the IAAF World Championship in Doha last year in October, winning gold while Kipruto won bronze.
Focus for the Ugandan sensation will be impressing at the Olympic Games this year in October.