The Dutchman and Hamilton collided at the first chicane on lap 26 of the Italian Grand Prix, just after a sequence of pitstops.
Hamilton had emerged ahead of Verstappen and held the inside line in to the first chicane, with his rival trying to go around the outside and claim the apex for the second part of the sequence.
But Verstappen ran wide and bounced over a kerb, which launched him up and over Hamilton’s car.
While Verstappen blamed Hamilton for squeezing him wide as they battled for position, the stewards took a different view.
They judged that Verstappen was ‘predominantly’ to blame for the accident, which put both drivers out of the race.
The stewards concluded that at no point in the incident did Verstappen have claim to the corner, as he had never drawn fully alongside Hamilton.
The statement issued by the stewards explained at length the reasoning behind their decision.
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“Car 44 was exiting the pits. Car 33 was on the main straight. At the 50m board before Turn 1, Car 44 was significantly ahead of Car 33.
“Car 33 braked late and started to move alongside Car 44, although at no point in the sequence does Car 33 get any further forward than just behind the front wheel of Car 44.
“During the hearing the driver of Car 33 asserted that the cause of the incident was the driver of Car 44 opening the steering after Turn 1 and “squeezing” him to the apex of turn 2.
“The driver of Car 44 asserted that the driver of Car 33 attempted to pass very late and should have given up the corner either by backing off sooner, or by turning left behind the kerb.
“The Stewards observed on CCTV footage that the driver of Car 44 was driving an avoiding line, although his position caused Car 33 to go onto the kerb. But further, the Stewards observed that Car 33 was not at all alongside Car 44 until significantly into the entry into Turn 1.
“In the opinion of the Stewards, this manoeuvre was attempted too late for the driver of Car 33 to have “the right to racing room”.
“While Car 44 could have steered further from the kerb to avoid the incident, the Stewards determined that his position was reasonable and therefore find that the driver of Car 33 was predominantly to blame for the incident.
“In coming to the penalty the Stewards emphasise that they have only considered the incident itself and not the consequences thereof.”
As well as the three-place grid drop for Sochi, Verstappen has been handed two penalty points on his licence. These are his first points from the last 12 months.
Max Verstappen, Red Bull Racing, walks away as a marshal assists at the scene of his crash with Lewis Hamilton, Mercedes W12
Photo by: Zak Mauger / Motorsport Images