The other occasions were 1987 and 1977.
The Brit is a six-time victor on this circuit and is looking for a fourth consecutive triumph on Circuit Gilles Villeneuve to draw level with F1 and Ferrari legend Michael Schumacher as a seven-time victor in North America.
"Naturally I'm still here to win, but if they've got upgrades in their engines, which can be from a tenth to two tenths, Ferrari are particularly very strong on the straights".
Hamilton has 122 career podiums and is second on the all-time list behind Schumacher (155). Red Bull Racing's Sebastian Vettel led all but three laps and easily took the checkered flag by over 14 seconds.
It's a defeat that sticks in the craw of Mercedes and team principal Wolff, who is determined the champion team will not repeat the same error again.
Haas's Romain Grosjean has yet to open his account for 2018 and including last season the Frenchman has not scored for 10 races in a row.
Hamilton and Schumacher have both taken six pole positions in Montreal, the Briton the top qualifier in 2007, 2008, 2010, 2015, 2016 and 2017.
The Briton can also beat the record he now shares with Schumacher of six poles in Montreal.
Montreal wasn't kind to Mercedes in 2014 with Hamilton encountering brake issues that forced him to retire after 46 laps.
As drivers, teams and fans flock to Montreal for the 2018 Canadian Grand Prix, fans at home get to see the unbelievable Circuit Gilles Villeneuve in the bright Canadian sunshine.
The rain-hit Canadian Grand Prix of 2011 was Formula One's longest race, lasting four hours, four minutes and 39.537 seconds.
An opening lap crash at turn three involving three cars brought out the only safety auto of the race, but otherwise, the race was as straightforward a race as it could be for Hamilton and Mercedes.
It will be a memorable weekend also for two-time champion Fernando Alonso, who is entered for his 300th Grand Prix and, potentially, his 298th start. Ferrari ought to know Montreal by now, seeing as how the city has hosted every Canadian Grand Prix for the last 40 years.
McLaren are marking the 50th anniversary of the team's first win, by founder Bruce McLaren in Belgium on June 9, 1968.
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