The decisive scene
Leclerc Lap 20 VSC stop
Lap 20 was the turning point: Leclerc used the VSC to take the lead over Antonelli, creating the victory chance that later pace could not sustain.
Featured decision read: GOOD
Ferrari's call
Ferrari stopped Leclerc from the lead on Lap 20, changing medium to hard under the VSC. The source-linked context confirms he emerged ahead of Antonelli.
Why the answer stays bounded
Spa’s long lap made the VSC opportunity valuable but time-sensitive, while exact Antonelli gaps, tyre age and moment the driver had to choose pit lane are not supplied.