Canada capitalized on 28 Finland errors and out-blocked the visitors 9-4, riding a 16-point performance by Gavin Schmitt to earn the opening-night victory.
Sivula picked up 15 points on the night, all on attacks. Schmitt led Canada with 12 kills, with Perrin adding nine.
Canada and Finland will wrap up the opening leg of their Pool C competition Sunday night in Calgary.
Pool C, standings:
Belgim 6 (2), Canada 3 (1), Australia 0 (2), Finland 0 (1)
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