An unrepentant woman who played an active part in the vandalism that rocked Toronto during the G20 summit two years ago has been given 11 months in jail.

Kelly Pflug-Back will be sentenced on Thursday. Kelly Pflug-Back will be sentenced on Thursday. (CBC)

The judge says Kelly Pflug-Back was among dozens of protesters who used black bloc tactics in what he called a well-planned window-smashing rampage through downtown Toronto in June 2010.

Pflug-Back had pleaded guilty to seven counts of mischief and one of wearing a disguise with criminal intent.

Video and photographic evidence showed Pflug-Back — clad in black and her face covered — taking a pole to store windows, a police cruiser and an ATM.

The defence had pressed for a conditional sentence, while the Crown urged the judge to sentence Pflug-Back to up to two years.

The police crackdown as a result of the vandalism led to more than 1,100 arrests — many of innocent bystanders — resulting in charges against some of the officers involved.