Elections Ontario has declared the Progressive Conservatives the winner in the riding of Thornhill after the discovery of an error in the vote tally up-ended what was initially declared a Liberal victory.
Spokesman Andrew Willis says the "official tabulation" of the results done on Friday has found PC incumbent Gila Martow was the winner by 85 votes.
The initial count done on election night had given the seat, which sits north of Toronto, to Liberal Sandra Yeung Racco by that very same margin.
That means the election results, which are still considered preliminary, now have Ontario's Liberals with 58 seats compared to 28 for the Tories.
Willis says the new outcome is the result of a "very comprehensive review" of the vote calculation that found a minor clerical error.
The change doesn't affect the status of the Liberal majority government.
Willis said Saturday that the Thornhill riding was the only one to have such a tabulation error.
Yeung Racco says she is disappointed and will be requesting a judicial