Hours after the dust had settled on a typically frenetic GP2 Series race around the streets of Monaco, event stewards announced a number of penalties that dramatically affected the results.

The punishments, which went as far as altering who picked up the silverware, resulted from several drivers cutting the corner at Ste Devote at the start of the event, with no fewer than eight drivers being penalised with the addition of 25-seconds to the elapsed race time. Stewards admitted that the usual penalty for cutting the course, under Article 30.3.1, should have been a drive-thru' penalty, but, because the offences were determined after the event, the time penalty was applied instead.

While Barwa Addax's 1-2 result remains unaltered, three of the race's point-scorers were affected by the ruling, with third-placed Lucas di Grassi and fourth-placed Nico Hulkenberg both being demoted as a result. Eighth-placed Javi Villa was also hit, along with Roldan Rodriguez (ninth), Dani Clos, Edoardo Mortara, Luca Filippi and Kamui Kobayashi (all not classified).

The biggest 'winner' from the decision was Andreas Zuber, who was promoted from fifth on the road to a podium finish, while Monaco expert Pastor Maldonado will now start Saturday's sprint race from pole position, having initially finished tenth overall.

di Grassi's penalty was sufficient only to drop him to fourth, so the Brazilian still scores some points for reigning drivers' champion Racing Engineering, while Hulkenberg also opens his account, albeit in fifth place rather than fourth. Both drivers will start from the top five in Saturday's event.

Villa dropped to tenth and Rodriguez to eleventh, while Mortara, Filippi, Kobayashi and Clos will start the sprint event between 19th and 22nd respectively.