MONTREAL, Canada -- The decision by Mercedes and Ferrari to qualify on the ultra-soft tyre in Q2, and therefore start on that compound, is a clear indication that they will attempt a one-stop.
Barring Safety Cars or other strategic anomalies, the ultra-soft runners are expected to make a single stop for super-soft tyres around lap 20 to 25. Both of the harder compounds on offer experienced minimal degradation on Friday, while the hyper-soft -- the softest compound in Pirelli's range -- had observed degradation of 0.2s per lap -- a significant amount given that it only offers a 0.