EK has made marathon winning look normal; what he always does is abnormal; what he did yesterday was normal; as marathon is just crazy sprinting for 42km on a day that weather can be bad, you can miss one water point, wind or temp bad, etc.
So I'd say this unless he loses the next - he still has lot in the tank. He lost London. Good thing EK still had the grace to go through and finish.
He has manage to be injury free - and that critical thing for him - as cerebral althete - he will be studying what went wrong. Boston hills were definitely a killer, then rain and the wind
That is enough red flag. He could not cope with the weather and pressure from Gaey giant.
It is time he starts doing it now for appearance fees and finishing not competitively.
Yeah he missed water at some point and paid; I dont think he is over; he still managed to finish; unless he get injured he will still run and win races; as he slowly age.