Pirelli's Motorsport Director Mario Isola believes that two and three stop race strategies are marginally faster than a one-stop but teams elect for one stops because it is less risky and involved less overtaking. He believes that a one-stop needs to be around 10 seconds slower before teams will even think about opting for a two stop.  “Maybe with the numbers that we have in the target letter it is quite normal that [a] one-stop strategy is the quickest,” he said to RaceFans. “On paper, it’s not the quickest. If you look at the numbers and you try to make a simulation you have numbers that are making the one-stop, two-stop and three-stop very similar. [But]...
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