MONTREAL — Red Bull’s Max Verstappen won the Canadian Grand Prix on Sunday, holding off threats from McLaren and Mercedes drivers in a chaotic race shaped by unpredictable weather.

Finishing a few seconds behind him was McLaren’s Lando Norris, who briefly led the race after an ill-timed “safety car” put him behind Verstappen. Mercedes’ George Russell finished third after starting first, narrowly beating his teammate Lewis Hamilton after an intense battle during the final laps of…