The optimal strategy for the 44-lap Belgian Grand Prix is on paper a one-stopper, but as usual the tactics in Belgium will be heavily influenced by the weather. Aside from the possibility of rain, estimated earlier at 80%, ambient and track temperatures will also play a part.
The fastest theoretical strategy is to start on the soft tyre for 18 laps and then complete the race on the medium. The exact opposite can work too.
Second-quickest is another one-stopper, with the soft for 16 laps and the hard for 28 laps, while a two-stopper is feasible as well: start on the soft for 14 laps, then medium for 16 laps, then soft for 14 laps.
Slower is a one-stopper using medium for 20 laps and hard for 24 laps – but all the strategies listed above are actually quite close, so it will come down to individual race circumstances when deciding the best solution.