Neither Haas nor Renault will use any of Pirelli's red-marked supersoft tyres next weekend in Canada, the Italian tyre manufacturer has revealed.
Mercedes, Ferrari and Red Bull, meanwhile, all have slightly different strategies, with Mercedes taking more of the purple-marked ultrasoft tyres than their immediate rivals.
Haas, though, have opted for the most aggressive strategy, with the team selecting 10 sets of ultrasofts and three sets of softs. Renault are the only other team to not take any of the supersofts, splitting their allocation between five sets of softs and eight sets of ultrasofts.
Williams are the only team to have different allocations for their two drivers: Valtteri Bottas will take two sets of softs and four sets of ultrasofts, while Felipe Massa has chosen three of each compound. Both men will have seven sets of ultrasofts at their disposal.
The individual driver choices are shown below:
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