LONDON (Reuters) - Only time will tell whether marathoner Kelvin Kiptum was a generational superstar or just the latest hugely talented product of the East African running production line to benefit from shoe technology development that shows no sign of slowing.

Kiptum, 24, died in a traffic accident in his native Kenya on Sunday a week after his incredible Chicago marathon time of two hours and 35 seconds was ratified as a world record, slicing over half a minute off compatriot Eliud Kipchoge's 2:01.09 mark.