Britain won the BoB because Churchill bombed Berlin and spoofed Adolf
into diverting the the airfield assaults onto London. EOS.

Grantland

Let me add that it was a lone German bomber that ditched its bombs
over London that caused the British reprisal raid on Berlin and change
of tactics that: relieved Fighter Command, enabled the airfields and
manufacturing plants to be repaired, and assured the Brits that the
German battle for air supremacy would fail now that civilian targets
were being hit instead of military ones. EOS indeed!

Rob