[1] In the 2010 season she was in the top three at the Corrida de Langueux, Maroilles 20K and Lille Half Marathon – at the latter she ran a personal best time of 69:27 minutes.

[2] This helped her earn her first international selection: at the 2010 IAAF World Half Marathon Championships she placed eleventh.

Chepchirchir was in the top two of all her French road races in 2011, including victories at the Le Puy-en-Velay 15K and the Humarathon (where she ran a course record and personal best of 68:07 minutes).

[1] She claimed the course record at the 2013 Paris 20K with a run of 1:05:03 hours,[5] and also won the Ndakaini Marathon in Kenya.

On 22 December 2023 she was provisionally suspended following an adverse analytical finding for testosterone in a sample collected at a marathon in Thailand in 8 November 2023.