wejo wrote:
Pretty interesting. When is the last time a major marathon was at night? I know the body's rhythm is such that runners do better at night than during the day but the heat will take away that advantage in Doha.
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Explain the "body rhythm" thingy?
Runner do better at night because there is no direct Sunlight beating down on them, all things being equal.
2010 DOHA Kipchoge 12:51 Chepkok 12:51
The race was run at night. Sunset at near the Equator is 6:00pm. That means the race went off two and a half hours past sunset. There is NO radiant energy coming from the Sun. It's a good time to run.
The 5000m went of at 8:35pm. The temperature was about 94, the dew point was 54. In other words it was ideal for running fast. The physiological benefits of higher energy without the barriers caused by the need for heat dissipation.
Now running a marathon at 94°, even at midnight, can be a problem, but nowhere near 80° at noon.