Virtually unknown Kenyan Joyciline Jepkosgei broke four world records at the Sportisimo Prague Half Marathon which is IAAF Gold Label Road Race. She set a new world record for the half marathon with a time of 1:04:52 on Saturday.

Jepkosgei ran at a blistering pace and ended breaking the world records for 10km, 15km and 20km on her way to the victory. She covered the first five kilometres in 14:53, then passed through 10km in 30:05. Defending champion Violah Chepchumba was the only one to keep up with Jepkosgei at this point and also broke the previous world 10km record by clocking 30:06. The previous record was set by Paula Radcliffe in 2003 at 30:21. It was well and truly smashed.

Both Jepkosgei and Chepchumba went on to smash the previous 15km record held by Florence Kiplagat at 46:14. The duo clocked 45:37 and 45:40 respectively.

In the process Jepkosgei broke the world record by clocking 1:04:52. She sliced an incredible 14 seconds off the previous record that had been set by compatriot Peres Jepchirchir in February of this year.

The nine fastest half marathon times in history  have now been run by Kenyan women.