Original Rankings based on the average margin between 10/1/2017 and 2/28/2018.
Margins for the First Round based on the average rack-to-retail margin on 3/15.
Margins for the Second Round based on average rack-to-retail margins on 3/19.
Margins for the Sweet 16 is based on the average rack-to-retail margin on 3/22.
Margins for the Elite 8 is based on the average rack-to-retail margin on 3/26.
Margins for the Final 4 is based on the average rack-to-retail margin on 3/30.
Margins for Championship is based on average OPIS rack-to-retail margins on 4/2.
Numbers are the margins in cents/gallon.