We know the two pirates kings was stronger as rayleigh and BB was afraid of him or should I say the whole world. Roger fought oden and destroyed him. Oden destroyed kaido. So roger>oden>=kaido thats simple maths
The Oden that fought Kaido was several times stronger than the one that Roger fought, so no you don’t know how to do math properly.
Oden made Kaido scream and scarred him, Zoro scarred a much durable Kaido (hybrid Kaido) so by that logic Zoro > Oden and Kaido is much stronger than Zoro. Kaido>>>Zoro>Oden. Simple maths.