He began training as a runner under coach Godwill Kipruto and around 2011 moved to Iten, a well-known centre for running in Kenya.

[4] This led to his international debut for Kenya and he placed ninth in the junior race at the 2013 IAAF World Cross Country Championships.

[5] Although he was beaten by his compatriots Barsoton and Kipruto at the event, his placing meant Kenya shared in the team silver medals behind Ethiopia.

[7] He extended his unbeaten streak in the 1500 m at the Athletissima 2014 Diamond League meeting – there he caused an upset by winning in 3:31.48 minutes to beat world championship medallists Silas Kiplagat, Matt Centrowitz and Abdalaati Iguider.

[11] In what was called one of the greatest races in the history of the 1500 metres, Kwemoi was an up close spectator to a world record attempt by Asbel Kiprop at the 2014 Herculis meet in Monaco.