Prosecutor Neil King told the court Ashley Gill-Webb threw a bottle in the hushed stadium just as the race was about to get under way:
He threw a green Heineken bottle in a lobbing motion that was captured on CCTV.
This bottle landed extremely close to the athletes and it's probably luck rather than Mr Gill-Webb's judgment that it did not do anything far more serious.
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The plaque at number 16 Cowley Street in Westminster marks the brown brick Georgian townhouse where Sir John lived for 31 years.
A man reportedly armed with several knives has been arrested in Whitehall on suspicion of planning a terror attack, police have said.
Metropolitan Police officer, Tom Harrison, has been crawling the course since the race began on Sunday morning.