Monaco decoded: how the undercut was won on lap 27
The pit-wall call that flipped the podium — and the tyre data behind it.
Monaco rarely rewards aggression, but Sunday turned on a single, brave undercut that the timing screens barely registered until it was already decided. Here is exactly how it happened, and why the covering car never had an answer.
The undercut window
By lap 25 the leading pair were locked in a 1.8s gap that had held for eight laps. The critical detail: the medium tyre was giving up ~0.15s/lap to graining while the hard still had life.
That delta is small — but over the three laps of an undercut it compounds into exactly the margin needed to leapfrog at the stops.
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